OpenWRT移植EC200A驱动，并实现wifi和lan的上网，及wan和4g的负载均衡（五）

2023-11-13

网卡驱动方式

转载：[拨号PPP NDIS RNDIS CDC ECM NCM QMI_WWAN GOBINET RMNET MBIM概念介绍](https://blog.csdn.net/qlexcel/article/details/117150901)
1、其实总结起来，我觉得就两种，一种是PPP类，一种是NDIS族类。NDIS族类的方式是标准化加高效化，对上，尽量标准化为网络设备；对下，则尽可能适应物理通道，高效利用。
2、RMNET拨号、QMI拨号、NDIS拨号都是NDIS拨号，叫法不同而已。
3、USB网卡拨号分为RMNET/QMI/NDIS、ECM、MBIM、RNDIS四种类型。
5、速度、对比、选用
  PPP使用复杂，对CPU负载大，网速上不去，不推荐使用。
  NDIS拨号支持QMAP功能，可以实现IP聚合和IP复用功能。支持IP聚合就可以一次URB传输多个IP包，减少CPU负载率。支持IP复用，可以实现多网卡的功能。因此推荐使用（尤其是高通模组）。
  ECM不支持IP聚合和复用功能，决定了不适用于高速场景。
  RNDIS协议上是支持IP聚合的，但是Linux自带驱动没有使用，所以也不适用于高速场景。
  MBIM默认就支持IP聚合，也支持IP复用。推荐使用。

EC200A 支持的网卡驱动 PPP ， ECM与RNDIS
EC20 支持PPP，QMI， GobiNet
RG500 支持 MBIM/RNDIS/ECM/NCM 四中网卡驱动，不推荐使用ppp

移远资料：

移远驱动手册：Quectel_LTE&5G_Linux_USB_Driver_User_Guide_V2.0.pdf
移远驱动源码：Quectel_Linux_USB_Serial_Option_Driver_20210205.tgz
移远连接管理：Quectel_QConnectManager_Linux_V1.6.0.16.zip
移远示例：Quectel_Linux_USB_Drivers_Sample_3.18.21_user_guide.docx
在这里插入图片描述
移远EC200S驱动手册：Quectel_EC200S_Linux_USB_Driver_User_Guide_V1.0.pdf

移远RM500U驱动（5G模组中文手册）：Quectel_RG500U-CN&RM500U-CN_Linux_USB驱动_用户指导_V1.1.pdf

移远模组EC200A相关驱动文件

移远4G模组驱动移植（其实移远都已经修改驱动文件）

USB转串口驱动移植

首先匹配openwrt Linux的内核版本和移远驱动手册的Linux内核版本的高低，进行openwrt的USB驱动的Linux适配修改
openwrt 内核版本（make kernel_menuconfig 或者 /build_dir/linux-ar71xx_generic/linux-3.3.8）

Quectel_Linux_USB_Serial_Option_Driver_20210205.tgz 里面最相近的V3.3.1 可以模仿修改（直接相近的文件覆盖openwrt内核文件build_dir/linux-ar71xx_generic/linux-3.3.8/drivers/usb/serial/）
在这里插入图片描述

添加对应的 VID 和 PID

查找移远模组的对应的 VID 和 PID（在驱动文档中找option配置 Quectel_EC200S_Linux_USB_Driver_User_Guide_V1.0.pdf）
build_dir/linux-ar71xx_generic/linux-3.3.8/drivers/usb/serial/option.c 查找usb_device_id位置进行修改

#if 1 //Added by Quectel
	{ USB_DEVICE(0x05C6, 0x9090) }, /* Quectel UC15 */
	{ USB_DEVICE(0x05C6, 0x9003) }, /* Quectel UC20 */
	{ USB_DEVICE(0x05C6, 0x9215) }, /* Quectel EC20(MDM9215) */
	{ USB_DEVICE(0x2C7C, 0x0125) }, /* Quectel EC20(MDM9x07)/EC25/EG25 */
	{ USB_DEVICE(0x2C7C, 0x0121) }, /* Quectel EC21 */
	{ USB_DEVICE(0x2C7C, 0x0191) }, /* Quectel EG91 */
	{ USB_DEVICE(0x2C7C, 0x0195) }, /* Quectel EG95 */
	{ USB_DEVICE(0x2C7C, 0x0306) }, /* Quectel EG06/EP06/EM06 */
	{ USB_DEVICE(0x2C7C, 0x0512) }, /* Quectel EG12/EP12/EM12/EG16/EG18 */
	{ USB_DEVICE(0x2C7C, 0x0296) }, /* Quectel BG96 */
	{ USB_DEVICE(0x2C7C, 0x0700) }, /* Quectel BG95/BG77/BG600L-M3/BC69 */
	{ USB_DEVICE(0x2C7C, 0x0435) }, /* Quectel AG35 */
	{ USB_DEVICE(0x2C7C, 0x0415) }, /* Quectel AG15 */
	{ USB_DEVICE(0x2C7C, 0x0452) }, /* Quectel AG520 */
	{ USB_DEVICE(0x2C7C, 0x0455) }, /* Quectel AG550 */
	{ USB_DEVICE(0x2C7C, 0x0620) }, /* Quectel EG20 */
	{ USB_DEVICE(0x2C7C, 0x0800) }, /* Quectel RG500/RM500/RG510/RM510 */
	{ USB_DEVICE(0x2C7C, 0x6026) }, /* Quectel EC200 */
	{ USB_DEVICE(0x2C7C, 0x6120) }, /* Quectel UC200 */
	{ USB_DEVICE(0x2C7C, 0x6000) }, /* Quectel EC200/UC200 */
	{ USB_DEVICE(0x2C7C, 0x6002) }, /* Quectel EC200S */
	{ USB_DEVICE(0x2C7C, 0x6005) }, /* Quectel EC200A */
	{ .match_flags = USB_DEVICE_ID_MATCH_VENDOR, .idVendor = 0x2C7C }, /* Match All Quectel Modules */
#endif

添加 USB 零包机制

在这里插入图片描述

build_dir/linux-ar71xx_generic/linux-3.3.8/drivers/usb/serial/usb_wwan.c 查找usb_wwan_setup_urb位置进行修改
对于Linux内核2.6.34及以上版本需要添加

#if 1 //Added by Quectel for Zero Packet
	if (dir == USB_DIR_OUT) {
		if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) && serial->dev->descriptor.idProduct == cpu_to_le16(0x9090))
			urb->transfer_flags |= URB_ZERO_PACKET;
		if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) && serial->dev->descriptor.idProduct == cpu_to_le16(0x9003))
			urb->transfer_flags |= URB_ZERO_PACKET;
		if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) && serial->dev->descriptor.idProduct == cpu_to_le16(0x9215))
			urb->transfer_flags |= URB_ZERO_PACKET;
		if (serial->dev->descriptor.idVendor == cpu_to_le16(0x2C7C))
			urb->transfer_flags |= URB_ZERO_PACKET;
	}
#endif

增加复位恢复机制

对于低于Linux内核3.5版本需要添加
在这里插入图片描述
修改 build_dir/linux-ar71xx_generic/linux-3.3.8/drivers/usb/serial/option.c

static struct usb_serial_driver option_1port_device = {
	.driver = {
		.owner =	THIS_MODULE,
		.name =		"option1",
	},
	.description       = "GSM modem (1-port)",
	.usb_driver        = &option_driver,
	.id_table          = option_ids,
	.num_ports         = 1,
	.probe             = option_probe,
	.open              = usb_wwan_open,
	.close             = usb_wwan_close,
	.dtr_rts	   = usb_wwan_dtr_rts,
	.write             = usb_wwan_write,
	.write_room        = usb_wwan_write_room,
	.chars_in_buffer   = usb_wwan_chars_in_buffer,
	.set_termios       = usb_wwan_set_termios,
	.tiocmget          = usb_wwan_tiocmget,
	.tiocmset          = usb_wwan_tiocmset,
	.ioctl             = usb_wwan_ioctl,
	.attach            = usb_wwan_startup,
	.disconnect        = usb_wwan_disconnect,
	.release           = usb_wwan_release,
	.read_int_callback = option_instat_callback,
#ifdef CONFIG_PM
	.suspend           = usb_wwan_suspend,
	.resume            = usb_wwan_resume,
#if 1 //Added by Quectel
	.reset_resume = usb_wwan_resume,
#endif
#endif
};

使用ECM or RNDIS

对于内核版本高于2.6.30 需要添加
在这里插入图片描述

#if 1 //Added by Quectel
	//Quectel UC20's interface 4 can be used as USB Network device
	if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) && serial->dev->descriptor.idProduct == cpu_to_le16(0x9003)
		&& serial->interface->cur_altsetting->desc.bInterfaceNumber >= 4)
		return -ENODEV;

	//Quectel EC20(MDM9215)'s interface 4 can be used as USB Network device
	if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) && serial->dev->descriptor.idProduct == cpu_to_le16(0x9215)
		&& serial->interface->cur_altsetting->desc.bInterfaceNumber >= 4)
		return -ENODEV;

	if (serial->dev->descriptor.idVendor == cpu_to_le16(0x2C7C)) {
		__u16 idProduct = le16_to_cpu(serial->dev->descriptor.idProduct);
		struct usb_interface_descriptor *intf = &serial->interface->cur_altsetting->desc;

		if (intf->bInterfaceClass != 0xFF) {
			//ECM, RNDIS, MBIM, ACM, UAC
			if (idProduct == 0x6004
		                && intf->bInterfaceNumber > 1
				&& intf->bInterfaceClass == 0x0A) {
				//EG060V cdc-acm interface force bind option
			}
			else {
				return -ENODEV;
			}
		}
		else if (intf->bInterfaceSubClass == 0x42) {
			//ADB
			return -ENODEV;
		}
		else if ((idProduct&0xF000) == 0x6000) {
			//ASR
		}
		else if ((idProduct&0xF000) == 0x8000) {
			//HISI
			if (intf->bInterfaceNumber == 0)
				return -ENODEV;
		}
		else if ((idProduct&0xFF00) == 0x0900) {
			//UNISOC
		}
		else if ((idProduct&0xF000) == 0x0000) {
			//MDM interface 4 is QMI
			if (intf->bInterfaceNumber == 4 && intf->bNumEndpoints == 3)
				return -ENODEV;
		}
	}
#endif

openwrt 配置

选择CPU 及编译目标

在这里插入图片描述

内核USB 驱动相关配置

添加ECM与RNDIS驱动
make kernel_menuconfig
Device Drivers  --->
	[*] USB support  --->
		<*>   Support for Host-side USB
		<*>   USB Serial Converter support  --->
			<*>   USB driver for GSM and CDMA modems
	[*] Network device support  --->
		USB Network Adapters  --->
			<*> Multi-purpose USB Networking Framework
				<*>   CDC Ethernet support (smart devices such as cable modems)
				<*>   CDC NCM support
				<*>   Host for RNDIS and ActiveSync devices (EXPERIMENTAL)

make menuconfig
添加 USB网络驱动
Kernel modules  --->
    USB Support  --->
        -*- kmod-usb-core
        -*- kmod-usb-net
            -*-   kmod-usb-net-cdc-ether
             <*>   kmod-usb-net-rndis
         <*> kmod-usb-ohci
         <*> kmod-usb-serial
         <*> kmod-usb-serial-option
         -*- kmod-usb-serial-wwan
         <*> kmod-usb-uhci
         <*> kmod-usb2

PPP拨号相关( 如果不使用PPP可以减少这块的编译安装)
Network  --->
    -*- chat
    <*> ppp
        <*>   ppp-mod-pppoa
        <*>   ppp-mod-pppoe
        <*>   ppp-mod-pppol2tp
        <*>   ppp-mod-pptp
        <*>   ppp-mod-radius
    <*> ppp-multilink
        <*>   pppdump
        <*>   pppstats
    <*> ser2net

添加网络工具
Utilities  --->
    <*> usb-modeswitch

添加命令工具
Base system ---> 
    <*> busybox (编译后出现 回车键进入)
        Miscellaneous Utilities ---> [*] microcom

编译openwrt系统

在这里插入图片描述
其实可以将内核相似的移远的驱动文件直接替代openwrt源码。

在这里插入图片描述

方式一 ppp 拨号

cat4 理论值：150Mpbs 实际手机设备在30~50Mpbs 但ppp方式只实现8-10Mpbs
ppp通用性较强效率不高
添加上面驱动，编译然后烧录，启动后查看是否读取USB驱动
在这里插入图片描述
测试EC200A驱动是否正常（microcom /dev/ttyUSB1）

ati 		查询模组版本号
at+cpin? 	查询是否读到卡
at+cgreg? 	查询模块注网状态PS域（数据业务）
at+cops? 	查询运营商以及模组注网情况
at+csq  	查询模块射频信号值
AT+QCFG="usbnet"? 查询配置网卡接口
AT+QNETDEVCTL? 	查询连接 USB 网卡

在这里插入图片描述
把相应的拨号脚本拷贝到openwrt文件系统中，然后执行pppd call quectel-ppp &

修改PPP脚本（SIM卡的运营商不太一样）

quectel-ppp
/dev/ttyUSB2 115200			（ ttyUSB1 修改 ttyUSB2 ）
user "" password "" 		（去掉账户密码）

quectel-pppd.sh 
QL_DEVNAME=/dev/ttyUSB2 	（ ttyUSB1 修改 ttyUSB2 ）
QL_APN=cmnet 				（cmnet中国移动 3gnet中国联通 ctnet 电信 ）
QL_USER= 					（去掉用户密码）
QL_PASSWORD=				 （去掉用户密码）

quectel-chat-connect
OK AT+CGDCONT=1,"IP","cmnet"	（cmnet中国移动 3gnet中国联通 ctnet 电信）

拨号成功后，使用ifconfig查看网卡
在这里插入图片描述
使用 ping 202.108.22.5 -I ppp0 查看网络

方式二 ECM与RNDIS 方式（30~50Mpbs）

针对EC200A 通过AT指令配置ECM网卡接口（模组默认是ECM网卡接口）
AT+QCFG=“usbnet”,1
在这里插入图片描述
AT+QNETDEVCTL=3,1 配置自动上电自动连接网卡

配置网络及防火墙实现WiFi及lan正常上网

vi  /etc/config/network
	config interface 'wwan1'
		option ifname 'usb0'
		option proto 'dhcp'

config interface 'lan'
	option ifname 'eth1'
	option type 'bridge'
	option proto 'static'
	option ipaddr '192.168.1.1'
	option netmask '255.255.255.0'
	option dns '114.114.114.114 114.114.115.115 180.76.76.76 8.8.8.8 8.8.4.4'

阿里公共DNS：223.5.5.5，223.6.6.6 类型选择：UDP
阿里加密DNS：aliDNS_ip/DNS-query  类型选择：https
阿里加密DNS：DNS.aliDNS.com/DNS-query  类型选择：https
腾讯公共DNS+：119.29.29.29 类型选择：UDP
腾讯加密DNS：doh.pub/DNS-query  类型选择：https
腾讯加密DNS：sm2.doh.pub/DNS-query 类型选择：https
百度公共DNS：180.76.76.76 类型选择：UDP
华为云公共DNS ：122.112.208.1，139.9.23.90 类型选择：UDP
114公共DNS：114.114.114.114，114.114.115.115 类型选择：UDP
OpenerDNS：42.120.21.30 类型选择：UDP
DNS派 电信 / 移动 / 铁通：101.226.4.6，218.30.118.6 类型选择：UDP
DNS派 联通：123.125.81.6，140.207.198.6 类型选择：UDP


Google DNS：8.8.8.8，8.8.4.4 类型选择：tls(UDPTCP也可以加入)
Google加密DNS：dns.google/dns-query  类型选择：https
Google加密DNS：dns.google  类型选择：tls
CloudFlare：1.1.1.1类型选择：tls(UDPTCP也可以加入)
IBM Quad9：9.9.9.9类型选择：tls(UDPTCP也可以加入)
IBM Quad9：doh.opendns.com/dns-query 类型选择：https
Norton ConnectSafe：199.85.126.10  199.85.127.10 类型选择：UDP
威瑞信：64.6.64.6  64.6.65.6  类型选择：UDP
Comodo**安全DNS：**  8.26.56.2  68.20.247.20 类型选择：UDP
DNS Watch**：** 84.200.69.80  84.200.70.40  类型选择：UDP
OpenDNS：208.67.222.222，208.67.220.220类型选择：tls(UDPTCP也可以加入)
韩国电信DNS：168.126.63.1，168.126.63.2类型选择：tls(UDPTCP也可以加入)
V2EX DNS：199.91.73.222，178.79.131.110类型选择：tls(UDPTCP也可以加入)

在这里插入图片描述

vi  /etc/config/firewall
	config zone
		option name 'wan'
		list network 'wwan'
		list network 'wwan1'
		option input 'REJECT'
		option output 'ACCEPT'
		option forward 'REJECT'
		option masq '1'
		option mtu_fix '1'

在这里插入图片描述

进阶方式移植EC200A

概述

由于build_dir 在make clean 后就会清空修改后文件，可以通过patch方式来实现编译自动生成代码，生成patch方式很多种。我倾向于验证后通过ubuntu自带工具diff 生成patch文件

OpenWrt移植EC200A驱动

环境说明：openwrt版本 18.06 硬件mtk7628 —> 内核版本：linux-4.14.206

需要编译一次make V=s -j8(才会产生 build_dir 目录)

将 build_dir/target-mipsel_24kc_musl/linux-ramips_mt76x8/linux-4.14.206/drivers/usb/serial目录下option.c qcserial.c usb_wwan.c usb-wwan.h 拷贝到桌面(如果修改这部分代码，需要还原一下文件，最好方式make clean 然后再make V=s -j8)
在这里插入图片描述
找到移远的linux的USB驱动相近内部版本

拷贝ubuntu桌面

由于v4.14.111USB驱动文件缺少EC200A的设备ID

static const struct usb_device_id option_ids[] = {
#if 1 //Added by Quectel
	{ USB_DEVICE(0x05C6, 0x9090) }, /* Quectel UC15 */
	{ USB_DEVICE(0x05C6, 0x9003) }, /* Quectel UC20 */
	{ USB_DEVICE(0x05C6, 0x9215) }, /* Quectel EC20(MDM9215) */
	{ USB_DEVICE(0x2C7C, 0x0125) }, /* Quectel EC20(MDM9x07)/EC25/EG25 */
	{ USB_DEVICE(0x2C7C, 0x0121) }, /* Quectel EC21 */
	{ USB_DEVICE(0x2C7C, 0x0191) }, /* Quectel EG91 */
	{ USB_DEVICE(0x2C7C, 0x0195) }, /* Quectel EG95 */
	{ USB_DEVICE(0x2C7C, 0x0306) }, /* Quectel EG06/EP06/EM06 */
	{ USB_DEVICE(0x2C7C, 0x0512) }, /* Quectel EG12/EP12/EM12/EG16/EG18 */
	{ USB_DEVICE(0x2C7C, 0x0296) }, /* Quectel BG96 */
	{ USB_DEVICE(0x2C7C, 0x0700) }, /* Quectel BG95/BG77/BG600L-M3/BC69 */
	{ USB_DEVICE(0x2C7C, 0x0435) }, /* Quectel AG35 */
	{ USB_DEVICE(0x2C7C, 0x0415) }, /* Quectel AG15 */
	{ USB_DEVICE(0x2C7C, 0x0452) }, /* Quectel AG520 */
	{ USB_DEVICE(0x2C7C, 0x0455) }, /* Quectel AG550 */
	{ USB_DEVICE(0x2C7C, 0x0620) }, /* Quectel EG20 */
	{ USB_DEVICE(0x2C7C, 0x0800) }, /* Quectel RG500/RM500/RG510/RM510 */
	{ USB_DEVICE(0x2C7C, 0x6026) }, /* Quectel EC200 */
	{ USB_DEVICE(0x2C7C, 0x6120) }, /* Quectel UC200 */
	{ USB_DEVICE(0x2C7C, 0x6000) }, /* Quectel EC200/UC200 */
	{ USB_DEVICE(0x2C7C, 0x6002) }, /* Quectel EC200S */
	{ USB_DEVICE(0x2C7C, 0x6005) }, /* Quectel EC200A */
	{ .match_flags = USB_DEVICE_ID_MATCH_VENDOR, .idVendor = 0x2C7C }, /* Match All Quectel Modules */
#endif

通过命令生成patch ( diff -Nur file.old file.new > xxx.patch)

diff -Nur xx/ v4.14.111/drivers/usb/serial/ > ./ec200a.patch

在这里插入图片描述
通过命令后生成文件还不能正常使用，打包的路径与实际使用的路径不匹配

所有diff -Nur 的行全部删除
将所有的xx 替换 a/drivers/usb/serial
将所有的v4.14.111/drivers/usb/serial 替换 b/drivers/usb/serial

修改前

diff -Nur xx/option.c v4.14.111/drivers/usb/serial/option.c
--- xx/option.c	2023-05-03 20:34:35.680635000 -0700
+++ v4.14.111/drivers/usb/serial/option.c	2023-05-03 20:44:15.881528858 -0700
@@ -200,7 +200,6 @@
 #define DELL_PRODUCT_5804_MINICARD_ATT		0x819b  /* Novatel E371 */
 
 #define DELL_PRODUCT_5821E			0x81d7
-#define DELL_PRODUCT_5821E_ESIM			0x81e0
 
 #define KYOCERA_VENDOR_ID			0x0c88
 #define KYOCERA_PRODUCT_KPC650			0x17da
@@ -248,12 +247,9 @@
 /* These Quectel products use Quectel's vendor ID */
 #define QUECTEL_PRODUCT_EC21			0x0121
 #define QUECTEL_PRODUCT_EC25			0x0125
-#define QUECTEL_PRODUCT_EG95			0x0195
 #define QUECTEL_PRODUCT_BG96			0x0296
 #define QUECTEL_PRODUCT_EP06			0x0306
 #define QUECTEL_PRODUCT_EM12			0x0512
-#define QUECTEL_PRODUCT_RM500Q			0x0800
-#define QUECTEL_PRODUCT_EC200T			0x6026
 
 #define CMOTECH_VENDOR_ID			0x16d8
 #define CMOTECH_PRODUCT_6001			0x6001
@@ -426,7 +422,6 @@
 #define CINTERION_PRODUCT_PH8_AUDIO		0x0083
 #define CINTERION_PRODUCT_AHXX_2RMNET		0x0084
 #define CINTERION_PRODUCT_AHXX_AUDIO		0x0085
-#define CINTERION_PRODUCT_CLS8			0x00b0
 
 /* Olivetti products */
 #define OLIVETTI_VENDOR_ID			0x0b3c
@@ -532,7 +527,6 @@
 /* Cellient products */
 #define CELLIENT_VENDOR_ID			0x2692
 #define CELLIENT_PRODUCT_MEN200			0x9005
-#define CELLIENT_PRODUCT_MPL200			0x9025
 
 /* Hyundai Petatel Inc. products */
 #define PETATEL_VENDOR_ID			0x1ff4
@@ -574,11 +568,33 @@
 /* Interface must have two endpoints */
 #define NUMEP2		BIT(16)
 
-/* Device needs ZLP */
-#define ZLP		BIT(17)
-
 
 static const struct usb_device_id option_ids[] = {
+#if 1 //Added by Quectel
+	{ USB_DEVICE(0x05C6, 0x9090) }, /* Quectel UC15 */
+	{ USB_DEVICE(0x05C6, 0x9003) }, /* Quectel UC20 */
+	{ USB_DEVICE(0x05C6, 0x9215) }, /* Quectel EC20(MDM9215) */
+	{ USB_DEVICE(0x2C7C, 0x0125) }, /* Quectel EC20(MDM9x07)/EC25/EG25 */
+	{ USB_DEVICE(0x2C7C, 0x0121) }, /* Quectel EC21 */
+	{ USB_DEVICE(0x2C7C, 0x0191) }, /* Quectel EG91 */
+	{ USB_DEVICE(0x2C7C, 0x0195) }, /* Quectel EG95 */
+	{ USB_DEVICE(0x2C7C, 0x0306) }, /* Quectel EG06/EP06/EM06 */
+	{ USB_DEVICE(0x2C7C, 0x0512) }, /* Quectel EG12/EP12/EM12/EG16/EG18 */
+	{ USB_DEVICE(0x2C7C, 0x0296) }, /* Quectel BG96 */
+	{ USB_DEVICE(0x2C7C, 0x0700) }, /* Quectel BG95/BG77/BG600L-M3/BC69 */
+	{ USB_DEVICE(0x2C7C, 0x0435) }, /* Quectel AG35 */
+	{ USB_DEVICE(0x2C7C, 0x0415) }, /* Quectel AG15 */
+	{ USB_DEVICE(0x2C7C, 0x0452) }, /* Quectel AG520 */
+	{ USB_DEVICE(0x2C7C, 0x0455) }, /* Quectel AG550 */
+	{ USB_DEVICE(0x2C7C, 0x0620) }, /* Quectel EG20 */
+	{ USB_DEVICE(0x2C7C, 0x0800) }, /* Quectel RG500/RM500/RG510/RM510 */
+	{ USB_DEVICE(0x2C7C, 0x6026) }, /* Quectel EC200 */
+	{ USB_DEVICE(0x2C7C, 0x6120) }, /* Quectel UC200 */
+	{ USB_DEVICE(0x2C7C, 0x6000) }, /* Quectel EC200/UC200 */
+	{ USB_DEVICE(0x2C7C, 0x6002) }, /* Quectel EC200S */
+	{ USB_DEVICE(0x2C7C, 0x6005) }, /* Quectel EC200A */
+	{ .match_flags = USB_DEVICE_ID_MATCH_VENDOR, .idVendor = 0x2C7C }, /* Match All Quectel Modules */
+#endif
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
@@ -980,11 +996,6 @@
 	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x7B) },
 	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x7C) },
 
-	/* Motorola devices */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x2a70, 0xff, 0xff, 0xff) },	/* mdm6600 */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x2e0a, 0xff, 0xff, 0xff) },	/* mdm9600 */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x4281, 0x0a, 0x00, 0xfc) },	/* mdm ram dl */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x900e, 0xff, 0xff, 0xff) },	/* mdm qc dl */
 
 	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) },
 	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) },
@@ -1055,8 +1066,6 @@
 	{ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5804_MINICARD_ATT, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5821E),
 	  .driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
-	{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5821E_ESIM),
-	  .driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
 	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },	/* ADU-E100, ADU-310 */
 	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
@@ -1099,30 +1108,18 @@
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, UBLOX_PRODUCT_R410M),
 	  .driver_info = RSVD(1) | RSVD(3) },
 	/* Quectel products using Quectel vendor ID */
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC21, 0xff, 0xff, 0xff),
-	  .driver_info = NUMEP2 },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC21, 0xff, 0, 0) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC25, 0xff, 0xff, 0xff),
-	  .driver_info = NUMEP2 },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC25, 0xff, 0, 0) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG95, 0xff, 0xff, 0xff),
-	  .driver_info = NUMEP2 },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG95, 0xff, 0, 0) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96, 0xff, 0xff, 0xff),
-	  .driver_info = NUMEP2 },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96, 0xff, 0, 0) },
+	{ USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC21),
+	  .driver_info = RSVD(4) },
+	{ USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC25),
+	  .driver_info = RSVD(4) },
+	{ USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96),
+	  .driver_info = RSVD(4) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0xff, 0xff),
 	  .driver_info = RSVD(1) | RSVD(2) | RSVD(3) | RSVD(4) | NUMEP2 },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0, 0) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM12, 0xff, 0xff, 0xff),
 	  .driver_info = RSVD(1) | RSVD(2) | RSVD(3) | RSVD(4) | NUMEP2 },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM12, 0xff, 0, 0) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500Q, 0xff, 0xff, 0x30) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500Q, 0xff, 0, 0) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500Q, 0xff, 0xff, 0x10),
-	  .driver_info = ZLP },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200T, 0xff, 0, 0) },
-
 	{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) },
 	{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CMU_300) },
 	{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6003),
@@ -1170,10 +1167,6 @@
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_CC864_SINGLE) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_DE910_DUAL) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UE910_V2) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1031, 0xff),	/* Telit LE910C1-EUX */
-	 .driver_info = NCTRL(0) | RSVD(3) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1033, 0xff),	/* Telit LE910C1-EUX (ECM) */
-	 .driver_info = NCTRL(0) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG0),
 	  .driver_info = RSVD(0) | RSVD(1) | NCTRL(2) | RSVD(3) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG1),
@@ -1184,32 +1177,14 @@
 	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) | RSVD(3) },
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG5, 0xff),
 	  .driver_info = RSVD(0) | RSVD(1) | NCTRL(2) | RSVD(3) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1050, 0xff),	/* Telit FN980 (rmnet) */
-	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1051, 0xff),	/* Telit FN980 (MBIM) */
-	  .driver_info = NCTRL(0) | RSVD(1) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1052, 0xff),	/* Telit FN980 (RNDIS) */
-	  .driver_info = NCTRL(2) | RSVD(3) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1053, 0xff),	/* Telit FN980 (ECM) */
-	  .driver_info = NCTRL(0) | RSVD(1) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1054, 0xff),	/* Telit FT980-KS */
-	  .driver_info = NCTRL(2) | RSVD(3) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1055, 0xff),	/* Telit FN980 (PCIe) */
-	  .driver_info = NCTRL(0) | RSVD(1) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910),
 	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(3) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910_DUAL_MODEM),
 	  .driver_info = NCTRL(0) | RSVD(3) },
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1102, 0xff),	/* Telit ME910 (ECM) */
 	  .driver_info = NCTRL(0) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x110a, 0xff),	/* Telit ME910G1 */
-	  .driver_info = NCTRL(0) | RSVD(3) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x110b, 0xff),	/* Telit ME910G1 (ECM) */
-	  .driver_info = NCTRL(0) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910),
 	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1203, 0xff),	/* Telit LE910Cx (RNDIS) */
-	  .driver_info = NCTRL(2) | RSVD(3) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910_USBCFG4),
 	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) | RSVD(3) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920),
@@ -1224,20 +1199,10 @@
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1213, 0xff) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1214),
 	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) | RSVD(3) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1230, 0xff),	/* Telit LE910Cx (rmnet) */
-	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1231, 0xff),	/* Telit LE910Cx (RNDIS) */
-	  .driver_info = NCTRL(2) | RSVD(3) },
-	{ USB_DEVICE(TELIT_VENDOR_ID, 0x1260),
-	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
-	{ USB_DEVICE(TELIT_VENDOR_ID, 0x1261),
-	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, 0x1900),				/* Telit LN940 (QMI) */
 	  .driver_info = NCTRL(0) | RSVD(1) },
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1901, 0xff),	/* Telit LN940 (MBIM) */
 	  .driver_info = NCTRL(0) },
-	{ USB_DEVICE(TELIT_VENDOR_ID, 0x9010),				/* Telit SBL FN980 flashing device */
-	  .driver_info = NCTRL(0) | ZLP },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0002, 0xff, 0xff, 0xff),
 	  .driver_info = RSVD(1) },
@@ -1402,7 +1367,6 @@
 	  .driver_info = RSVD(4) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0414, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0417, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_INTERFACE_CLASS(ZTE_VENDOR_ID, 0x0601, 0xff) },	/* GosunCn ZTE WeLink ME3630 (RNDIS mode) */
 	{ USB_DEVICE_INTERFACE_CLASS(ZTE_VENDOR_ID, 0x0602, 0xff) },	/* GosunCn ZTE WeLink ME3630 (MBIM mode) */
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1008, 0xff, 0xff, 0xff),
 	  .driver_info = RSVD(4) },
@@ -1608,7 +1572,6 @@
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1428, 0xff, 0xff, 0xff),  /* Telewell TW-LTE 4G v2 */
 	  .driver_info = RSVD(2) },
 	{ USB_DEVICE_INTERFACE_CLASS(ZTE_VENDOR_ID, 0x1476, 0xff) },	/* GosunCn ZTE WeLink ME3630 (ECM/NCM mode) */
-	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1481, 0xff, 0x00, 0x00) }, /* ZTE MF871A */
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1533, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1534, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1535, 0xff, 0xff, 0xff) },
@@ -1837,10 +1800,6 @@
 	{ USB_DEVICE(ALINK_VENDOR_ID, SIMCOM_PRODUCT_SIM7100E),
 	  .driver_info = RSVD(5) | RSVD(6) },
 	{ USB_DEVICE_INTERFACE_CLASS(0x1e0e, 0x9003, 0xff) },	/* Simcom SIM7500/SIM7600 MBIM mode */
-	{ USB_DEVICE_INTERFACE_CLASS(0x1e0e, 0x9011, 0xff),	/* Simcom SIM7500/SIM7600 RNDIS mode */
-	  .driver_info = RSVD(7) },
-	{ USB_DEVICE_INTERFACE_CLASS(0x1e0e, 0x9205, 0xff) },	/* Simcom SIM7070/SIM7080/SIM7090 AT+ECM mode */
-	{ USB_DEVICE_INTERFACE_CLASS(0x1e0e, 0x9206, 0xff) },	/* Simcom SIM7070/SIM7080/SIM7090 AT-only mode */
 	{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S_X200),
 	  .driver_info = NCTRL(0) | NCTRL(1) | RSVD(4) },
 	{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X220_X500D),
@@ -1903,8 +1862,6 @@
 	  .driver_info = RSVD(4) },
 	{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX_2RMNET, 0xff) },
 	{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX_AUDIO, 0xff) },
-	{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_CLS8, 0xff),
-	  .driver_info = RSVD(0) | RSVD(4) },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDM) },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDMNET) },
 	{ USB_DEVICE(SIEMENS_VENDOR_ID, CINTERION_PRODUCT_HC25_MDM) },
@@ -1998,8 +1955,6 @@
 	{ USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM2, 0xff, 0x02, 0x01) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM2, 0xff, 0x00, 0x00) },
 	{ USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MEN200) },
-	{ USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MPL200),
-	  .driver_info = RSVD(1) | RSVD(4) },
 	{ USB_DEVICE(PETATEL_VENDOR_ID, PETATEL_PRODUCT_NP10T_600A) },
 	{ USB_DEVICE(PETATEL_VENDOR_ID, PETATEL_PRODUCT_NP10T_600E) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(TPLINK_VENDOR_ID, TPLINK_PRODUCT_LTE, 0xff, 0x00, 0x00) },	/* TP-Link LTE Module */
@@ -2011,28 +1966,17 @@
 	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d01, 0xff) },			/* D-Link DWM-156 (variant) */
 	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d02, 0xff) },
 	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d03, 0xff) },
-	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d04, 0xff),			/* D-Link DWM-158 */
-	 .driver_info = RSVD(4) | RSVD(5) },
+	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d04, 0xff) },			/* D-Link DWM-158 */
 	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d0e, 0xff) },			/* D-Link DWM-157 C1 */
 	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e19, 0xff),			/* D-Link DWM-221 B1 */
 	  .driver_info = RSVD(4) },
 	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e35, 0xff),			/* D-Link DWM-222 */
 	  .driver_info = RSVD(4) },
-	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e3d, 0xff),			/* D-Link DWM-222 A2 */
-	  .driver_info = RSVD(4) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) },	/* D-Link DWM-152/C1 */
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e02, 0xff, 0xff, 0xff) },	/* D-Link DWM-156/C1 */
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x7e11, 0xff, 0xff, 0xff) },	/* D-Link DWM-156/A3 */
-	{ USB_DEVICE_INTERFACE_CLASS(0x1435, 0xd191, 0xff),			/* Wistron Neweb D19Q1 */
-	  .driver_info = RSVD(1) | RSVD(4) },
-	{ USB_DEVICE_INTERFACE_CLASS(0x1690, 0x7588, 0xff),			/* ASKEY WWHC050 */
-	  .driver_info = RSVD(1) | RSVD(4) },
 	{ USB_DEVICE_INTERFACE_CLASS(0x2020, 0x2031, 0xff),			/* Olicard 600 */
 	  .driver_info = RSVD(4) },
-	{ USB_DEVICE_INTERFACE_CLASS(0x2020, 0x2033, 0xff),			/* BroadMobi BM806U */
-	  .driver_info = RSVD(4) },
-	{ USB_DEVICE_INTERFACE_CLASS(0x2020, 0x2060, 0xff),			/* BroadMobi BM818 */
-	  .driver_info = RSVD(4) },
 	{ USB_DEVICE_INTERFACE_CLASS(0x2020, 0x4000, 0xff) },			/* OLICARD300 - MT6225 */
 	{ USB_DEVICE(INOVIA_VENDOR_ID, INOVIA_SEW858) },
 	{ USB_DEVICE(VIATELECOM_VENDOR_ID, VIATELECOM_PRODUCT_CDS7) },
@@ -2045,19 +1989,12 @@
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x13) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x14) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x1b) },
-	{ USB_DEVICE(0x0489, 0xe0b4),						/* Foxconn T77W968 */
-	  .driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
-	{ USB_DEVICE(0x0489, 0xe0b5),						/* Foxconn T77W968 ESIM */
-	  .driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
 	{ USB_DEVICE(0x1508, 0x1001),						/* Fibocom NL668 */
 	  .driver_info = RSVD(4) | RSVD(5) | RSVD(6) },
 	{ USB_DEVICE(0x2cb7, 0x0104),						/* Fibocom NL678 series */
 	  .driver_info = RSVD(4) | RSVD(5) },
 	{ USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x0105, 0xff),			/* Fibocom NL678 series */
 	  .driver_info = RSVD(6) },
-	{ USB_DEVICE_INTERFACE_CLASS(0x305a, 0x1404, 0xff) },			/* GosunCn GM500 RNDIS */
-	{ USB_DEVICE_INTERFACE_CLASS(0x305a, 0x1405, 0xff) },			/* GosunCn GM500 MBIM */
-	{ USB_DEVICE_INTERFACE_CLASS(0x305a, 0x1406, 0xff) },			/* GosunCn GM500 ECM/NCM */
 	{ } /* Terminating entry */
 };
 MODULE_DEVICE_TABLE(usb, option_ids);
@@ -2092,6 +2029,9 @@
 #ifdef CONFIG_PM
 	.suspend           = usb_wwan_suspend,
 	.resume            = usb_wwan_resume,
+#if 1 //Added by Quectel
+	.reset_resume = usb_wwan_resume,
+#endif
 #endif
 };
 
@@ -2109,6 +2049,55 @@
 	struct usb_device_descriptor *dev_desc = &serial->dev->descriptor;
 	unsigned long device_flags = id->driver_info;
 
+#if 1 //Added by Quectel
+	//Quectel UC20's interface 4 can be used as USB Network device
+	if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) && serial->dev->descriptor.idProduct == cpu_to_le16(0x9003)
+		&& serial->interface->cur_altsetting->desc.bInterfaceNumber >= 4)
+		return -ENODEV;
+
+	//Quectel EC20(MDM9215)'s interface 4 can be used as USB Network device
+	if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) && serial->dev->descriptor.idProduct == cpu_to_le16(0x9215)
+		&& serial->interface->cur_altsetting->desc.bInterfaceNumber >= 4)
+		return -ENODEV;
+
+	if (serial->dev->descriptor.idVendor == cpu_to_le16(0x2C7C)) {
+		__u16 idProduct = le16_to_cpu(serial->dev->descriptor.idProduct);
+		struct usb_interface_descriptor *intf = &serial->interface->cur_altsetting->desc;
+
+		if (intf->bInterfaceClass != 0xFF) {
+			//ECM, RNDIS, MBIM, ACM, UAC
+			if (idProduct == 0x6004
+		                && intf->bInterfaceNumber > 1
+				&& intf->bInterfaceClass == 0x0A) {
+				//EG060V cdc-acm interface force bind option
+			}
+			else {
+				return -ENODEV;
+			}
+		}
+		else if (intf->bInterfaceSubClass == 0x42) {
+			//ADB
+			return -ENODEV;
+		}
+		else if ((idProduct&0xF000) == 0x6000) {
+			//ASR
+		}
+		else if ((idProduct&0xF000) == 0x8000) {
+			//HISI
+			if (intf->bInterfaceNumber == 0)
+				return -ENODEV;
+		}
+		else if ((idProduct&0xFF00) == 0x0900) {
+			//UNISOC
+		}
+		else if ((idProduct&0xF000) == 0x0000) {
+			//MDM interface 4 is QMI
+			if (intf->bInterfaceNumber == 4 && intf->bNumEndpoints == 3)
+				return -ENODEV;
+		}
+	}
+#endif
+
 	/* Never bind to the CD-Rom emulation interface	*/
 	if (iface_desc->bInterfaceClass == 0x08)
 		return -ENODEV;
@@ -2160,9 +2149,6 @@
 	if (!(device_flags & NCTRL(iface_desc->bInterfaceNumber)))
 		data->use_send_setup = 1;
 
-	if (device_flags & ZLP)
-		data->use_zlp = 1;
-
 	spin_lock_init(&data->susp_lock);
 
 	usb_set_serial_data(serial, data);
diff -Nur xx/qcserial.c v4.14.111/drivers/usb/serial/qcserial.c
--- xx/qcserial.c	2020-11-10 12:10:29.000000000 -0800
+++ v4.14.111/drivers/usb/serial/qcserial.c	2021-02-04 22:13:35.000000000 -0800
@@ -67,7 +67,7 @@
 	{DEVICE_G1K(0x05c6, 0x9202)},	/* Generic Gobi Modem device */
 	{DEVICE_G1K(0x05c6, 0x9203)},	/* Generic Gobi Modem device */
 	{DEVICE_G1K(0x05c6, 0x9222)},	/* Generic Gobi Modem device */
-	{DEVICE_G1K(0x05c6, 0x9008)},	/* Generic Gobi QDL device */
+	//{DEVICE_G1K(0x05c6, 0x9008)},	/* Generic Gobi QDL device */
 	{DEVICE_G1K(0x05c6, 0x9009)},	/* Generic Gobi Modem device */
 	{DEVICE_G1K(0x05c6, 0x9201)},	/* Generic Gobi QDL device */
 	{DEVICE_G1K(0x05c6, 0x9221)},	/* Generic Gobi QDL device */
@@ -159,7 +159,6 @@
 	{DEVICE_SWI(0x1199, 0x9056)},	/* Sierra Wireless Modem */
 	{DEVICE_SWI(0x1199, 0x9060)},	/* Sierra Wireless Modem */
 	{DEVICE_SWI(0x1199, 0x9061)},	/* Sierra Wireless Modem */
-	{DEVICE_SWI(0x1199, 0x9062)},	/* Sierra Wireless EM7305 QDL */
 	{DEVICE_SWI(0x1199, 0x9063)},	/* Sierra Wireless EM7305 */
 	{DEVICE_SWI(0x1199, 0x9070)},	/* Sierra Wireless MC74xx */
 	{DEVICE_SWI(0x1199, 0x9071)},	/* Sierra Wireless MC74xx */
@@ -178,8 +177,6 @@
 	{DEVICE_SWI(0x413c, 0x81b3)},	/* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
 	{DEVICE_SWI(0x413c, 0x81b5)},	/* Dell Wireless 5811e QDL */
 	{DEVICE_SWI(0x413c, 0x81b6)},	/* Dell Wireless 5811e QDL */
-	{DEVICE_SWI(0x413c, 0x81cb)},	/* Dell Wireless 5816e QDL */
-	{DEVICE_SWI(0x413c, 0x81cc)},	/* Dell Wireless 5816e */
 	{DEVICE_SWI(0x413c, 0x81cf)},   /* Dell Wireless 5819 */
 	{DEVICE_SWI(0x413c, 0x81d0)},   /* Dell Wireless 5819 */
 	{DEVICE_SWI(0x413c, 0x81d1)},   /* Dell Wireless 5818 */
diff -Nur xx/usb_wwan.c v4.14.111/drivers/usb/serial/usb_wwan.c
--- xx/usb_wwan.c	2020-11-10 12:10:29.000000000 -0800
+++ v4.14.111/drivers/usb/serial/usb_wwan.c	2021-02-04 22:13:35.000000000 -0800
@@ -302,10 +302,6 @@
 	if (status) {
 		dev_dbg(dev, "%s: nonzero status: %d on endpoint %02x.\n",
 			__func__, status, endpoint);
-
-		/* don't resubmit on fatal errors */
-		if (status == -ESHUTDOWN || status == -ENOENT)
-			return;
 	} else {
 		if (urb->actual_length) {
 			tty_insert_flip_string(&port->port, data,
@@ -496,7 +492,6 @@
 				      void (*callback) (struct urb *))
 {
 	struct usb_serial *serial = port->serial;
-	struct usb_wwan_intf_private *intfdata = usb_get_serial_data(serial);
 	struct urb *urb;
 
 	urb = usb_alloc_urb(0, GFP_KERNEL);	/* No ISO */
@@ -507,8 +502,18 @@
 			  usb_sndbulkpipe(serial->dev, endpoint) | dir,
 			  buf, len, callback, ctx);
 
-	if (intfdata->use_zlp && dir == USB_DIR_OUT)
-		urb->transfer_flags |= URB_ZERO_PACKET;
+#if 1 //Added by Quectel for Zero Packet
+	if (dir == USB_DIR_OUT) {
+		if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) && serial->dev->descriptor.idProduct == cpu_to_le16(0x9090))
+			urb->transfer_flags |= URB_ZERO_PACKET;
+		if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) && serial->dev->descriptor.idProduct == cpu_to_le16(0x9003))
+			urb->transfer_flags |= URB_ZERO_PACKET;
+		if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) && serial->dev->descriptor.idProduct == cpu_to_le16(0x9215))
+			urb->transfer_flags |= URB_ZERO_PACKET;
+		if (serial->dev->descriptor.idVendor == cpu_to_le16(0x2C7C))
+			urb->transfer_flags |= URB_ZERO_PACKET;
+	}
+#endif
 
 	return urb;
 }
diff -Nur xx/usb-wwan.h v4.14.111/drivers/usb/serial/usb-wwan.h
--- xx/usb-wwan.h	2020-11-10 12:10:29.000000000 -0800
+++ v4.14.111/drivers/usb/serial/usb-wwan.h	2021-02-04 22:07:03.000000000 -0800
@@ -36,7 +36,6 @@
 	spinlock_t susp_lock;
 	unsigned int suspended:1;
 	unsigned int use_send_setup:1;
-	unsigned int use_zlp:1;
 	int in_flight;
 	unsigned int open_ports;
 	void *private;

修改后（如果openwrt18.06官方版本，并且硬件mtk7628那么直接拷贝文件下修改名称和后缀就可以直接使用）

--- a/drivers/usb/serial/option.c	2023-05-03 20:34:35.680635000 -0700
+++ b/drivers/usb/serial/option.c	2023-05-03 20:44:15.881528858 -0700
@@ -200,7 +200,6 @@
 #define DELL_PRODUCT_5804_MINICARD_ATT		0x819b  /* Novatel E371 */
 
 #define DELL_PRODUCT_5821E			0x81d7
-#define DELL_PRODUCT_5821E_ESIM			0x81e0
 
 #define KYOCERA_VENDOR_ID			0x0c88
 #define KYOCERA_PRODUCT_KPC650			0x17da
@@ -248,12 +247,9 @@
 /* These Quectel products use Quectel's vendor ID */
 #define QUECTEL_PRODUCT_EC21			0x0121
 #define QUECTEL_PRODUCT_EC25			0x0125
-#define QUECTEL_PRODUCT_EG95			0x0195
 #define QUECTEL_PRODUCT_BG96			0x0296
 #define QUECTEL_PRODUCT_EP06			0x0306
 #define QUECTEL_PRODUCT_EM12			0x0512
-#define QUECTEL_PRODUCT_RM500Q			0x0800
-#define QUECTEL_PRODUCT_EC200T			0x6026
 
 #define CMOTECH_VENDOR_ID			0x16d8
 #define CMOTECH_PRODUCT_6001			0x6001
@@ -426,7 +422,6 @@
 #define CINTERION_PRODUCT_PH8_AUDIO		0x0083
 #define CINTERION_PRODUCT_AHXX_2RMNET		0x0084
 #define CINTERION_PRODUCT_AHXX_AUDIO		0x0085
-#define CINTERION_PRODUCT_CLS8			0x00b0
 
 /* Olivetti products */
 #define OLIVETTI_VENDOR_ID			0x0b3c
@@ -532,7 +527,6 @@
 /* Cellient products */
 #define CELLIENT_VENDOR_ID			0x2692
 #define CELLIENT_PRODUCT_MEN200			0x9005
-#define CELLIENT_PRODUCT_MPL200			0x9025
 
 /* Hyundai Petatel Inc. products */
 #define PETATEL_VENDOR_ID			0x1ff4
@@ -574,11 +568,33 @@
 /* Interface must have two endpoints */
 #define NUMEP2		BIT(16)
 
-/* Device needs ZLP */
-#define ZLP		BIT(17)
-
 
 static const struct usb_device_id option_ids[] = {
+#if 1 //Added by Quectel
+	{ USB_DEVICE(0x05C6, 0x9090) }, /* Quectel UC15 */
+	{ USB_DEVICE(0x05C6, 0x9003) }, /* Quectel UC20 */
+	{ USB_DEVICE(0x05C6, 0x9215) }, /* Quectel EC20(MDM9215) */
+	{ USB_DEVICE(0x2C7C, 0x0125) }, /* Quectel EC20(MDM9x07)/EC25/EG25 */
+	{ USB_DEVICE(0x2C7C, 0x0121) }, /* Quectel EC21 */
+	{ USB_DEVICE(0x2C7C, 0x0191) }, /* Quectel EG91 */
+	{ USB_DEVICE(0x2C7C, 0x0195) }, /* Quectel EG95 */
+	{ USB_DEVICE(0x2C7C, 0x0306) }, /* Quectel EG06/EP06/EM06 */
+	{ USB_DEVICE(0x2C7C, 0x0512) }, /* Quectel EG12/EP12/EM12/EG16/EG18 */
+	{ USB_DEVICE(0x2C7C, 0x0296) }, /* Quectel BG96 */
+	{ USB_DEVICE(0x2C7C, 0x0700) }, /* Quectel BG95/BG77/BG600L-M3/BC69 */
+	{ USB_DEVICE(0x2C7C, 0x0435) }, /* Quectel AG35 */
+	{ USB_DEVICE(0x2C7C, 0x0415) }, /* Quectel AG15 */
+	{ USB_DEVICE(0x2C7C, 0x0452) }, /* Quectel AG520 */
+	{ USB_DEVICE(0x2C7C, 0x0455) }, /* Quectel AG550 */
+	{ USB_DEVICE(0x2C7C, 0x0620) }, /* Quectel EG20 */
+	{ USB_DEVICE(0x2C7C, 0x0800) }, /* Quectel RG500/RM500/RG510/RM510 */
+	{ USB_DEVICE(0x2C7C, 0x6026) }, /* Quectel EC200 */
+	{ USB_DEVICE(0x2C7C, 0x6120) }, /* Quectel UC200 */
+	{ USB_DEVICE(0x2C7C, 0x6000) }, /* Quectel EC200/UC200 */
+	{ USB_DEVICE(0x2C7C, 0x6002) }, /* Quectel EC200S */
+	{ USB_DEVICE(0x2C7C, 0x6005) }, /* Quectel EC200A */
+	{ .match_flags = USB_DEVICE_ID_MATCH_VENDOR, .idVendor = 0x2C7C }, /* Match All Quectel Modules */
+#endif
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
@@ -980,11 +996,6 @@
 	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x7B) },
 	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x7C) },
 
-	/* Motorola devices */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x2a70, 0xff, 0xff, 0xff) },	/* mdm6600 */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x2e0a, 0xff, 0xff, 0xff) },	/* mdm9600 */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x4281, 0x0a, 0x00, 0xfc) },	/* mdm ram dl */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x900e, 0xff, 0xff, 0xff) },	/* mdm qc dl */
 
 	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) },
 	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) },
@@ -1055,8 +1066,6 @@
 	{ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5804_MINICARD_ATT, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5821E),
 	  .driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
-	{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5821E_ESIM),
-	  .driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
 	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },	/* ADU-E100, ADU-310 */
 	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
@@ -1099,30 +1108,18 @@
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, UBLOX_PRODUCT_R410M),
 	  .driver_info = RSVD(1) | RSVD(3) },
 	/* Quectel products using Quectel vendor ID */
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC21, 0xff, 0xff, 0xff),
-	  .driver_info = NUMEP2 },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC21, 0xff, 0, 0) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC25, 0xff, 0xff, 0xff),
-	  .driver_info = NUMEP2 },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC25, 0xff, 0, 0) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG95, 0xff, 0xff, 0xff),
-	  .driver_info = NUMEP2 },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG95, 0xff, 0, 0) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96, 0xff, 0xff, 0xff),
-	  .driver_info = NUMEP2 },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96, 0xff, 0, 0) },
+	{ USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC21),
+	  .driver_info = RSVD(4) },
+	{ USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC25),
+	  .driver_info = RSVD(4) },
+	{ USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96),
+	  .driver_info = RSVD(4) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0xff, 0xff),
 	  .driver_info = RSVD(1) | RSVD(2) | RSVD(3) | RSVD(4) | NUMEP2 },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0, 0) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM12, 0xff, 0xff, 0xff),
 	  .driver_info = RSVD(1) | RSVD(2) | RSVD(3) | RSVD(4) | NUMEP2 },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM12, 0xff, 0, 0) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500Q, 0xff, 0xff, 0x30) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500Q, 0xff, 0, 0) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500Q, 0xff, 0xff, 0x10),
-	  .driver_info = ZLP },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200T, 0xff, 0, 0) },
-
 	{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) },
 	{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CMU_300) },
 	{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6003),
@@ -1170,10 +1167,6 @@
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_CC864_SINGLE) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_DE910_DUAL) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UE910_V2) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1031, 0xff),	/* Telit LE910C1-EUX */
-	 .driver_info = NCTRL(0) | RSVD(3) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1033, 0xff),	/* Telit LE910C1-EUX (ECM) */
-	 .driver_info = NCTRL(0) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG0),
 	  .driver_info = RSVD(0) | RSVD(1) | NCTRL(2) | RSVD(3) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG1),
@@ -1184,32 +1177,14 @@
 	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) | RSVD(3) },
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG5, 0xff),
 	  .driver_info = RSVD(0) | RSVD(1) | NCTRL(2) | RSVD(3) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1050, 0xff),	/* Telit FN980 (rmnet) */
-	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1051, 0xff),	/* Telit FN980 (MBIM) */
-	  .driver_info = NCTRL(0) | RSVD(1) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1052, 0xff),	/* Telit FN980 (RNDIS) */
-	  .driver_info = NCTRL(2) | RSVD(3) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1053, 0xff),	/* Telit FN980 (ECM) */
-	  .driver_info = NCTRL(0) | RSVD(1) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1054, 0xff),	/* Telit FT980-KS */
-	  .driver_info = NCTRL(2) | RSVD(3) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1055, 0xff),	/* Telit FN980 (PCIe) */
-	  .driver_info = NCTRL(0) | RSVD(1) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910),
 	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(3) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910_DUAL_MODEM),
 	  .driver_info = NCTRL(0) | RSVD(3) },
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1102, 0xff),	/* Telit ME910 (ECM) */
 	  .driver_info = NCTRL(0) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x110a, 0xff),	/* Telit ME910G1 */
-	  .driver_info = NCTRL(0) | RSVD(3) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x110b, 0xff),	/* Telit ME910G1 (ECM) */
-	  .driver_info = NCTRL(0) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910),
 	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1203, 0xff),	/* Telit LE910Cx (RNDIS) */
-	  .driver_info = NCTRL(2) | RSVD(3) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910_USBCFG4),
 	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) | RSVD(3) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920),
@@ -1224,20 +1199,10 @@
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1213, 0xff) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1214),
 	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) | RSVD(3) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1230, 0xff),	/* Telit LE910Cx (rmnet) */
-	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
-	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1231, 0xff),	/* Telit LE910Cx (RNDIS) */
-	  .driver_info = NCTRL(2) | RSVD(3) },
-	{ USB_DEVICE(TELIT_VENDOR_ID, 0x1260),
-	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
-	{ USB_DEVICE(TELIT_VENDOR_ID, 0x1261),
-	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, 0x1900),				/* Telit LN940 (QMI) */
 	  .driver_info = NCTRL(0) | RSVD(1) },
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1901, 0xff),	/* Telit LN940 (MBIM) */
 	  .driver_info = NCTRL(0) },
-	{ USB_DEVICE(TELIT_VENDOR_ID, 0x9010),				/* Telit SBL FN980 flashing device */
-	  .driver_info = NCTRL(0) | ZLP },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0002, 0xff, 0xff, 0xff),
 	  .driver_info = RSVD(1) },
@@ -1402,7 +1367,6 @@
 	  .driver_info = RSVD(4) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0414, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0417, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_INTERFACE_CLASS(ZTE_VENDOR_ID, 0x0601, 0xff) },	/* GosunCn ZTE WeLink ME3630 (RNDIS mode) */
 	{ USB_DEVICE_INTERFACE_CLASS(ZTE_VENDOR_ID, 0x0602, 0xff) },	/* GosunCn ZTE WeLink ME3630 (MBIM mode) */
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1008, 0xff, 0xff, 0xff),
 	  .driver_info = RSVD(4) },
@@ -1608,7 +1572,6 @@
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1428, 0xff, 0xff, 0xff),  /* Telewell TW-LTE 4G v2 */
 	  .driver_info = RSVD(2) },
 	{ USB_DEVICE_INTERFACE_CLASS(ZTE_VENDOR_ID, 0x1476, 0xff) },	/* GosunCn ZTE WeLink ME3630 (ECM/NCM mode) */
-	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1481, 0xff, 0x00, 0x00) }, /* ZTE MF871A */
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1533, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1534, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1535, 0xff, 0xff, 0xff) },
@@ -1837,10 +1800,6 @@
 	{ USB_DEVICE(ALINK_VENDOR_ID, SIMCOM_PRODUCT_SIM7100E),
 	  .driver_info = RSVD(5) | RSVD(6) },
 	{ USB_DEVICE_INTERFACE_CLASS(0x1e0e, 0x9003, 0xff) },	/* Simcom SIM7500/SIM7600 MBIM mode */
-	{ USB_DEVICE_INTERFACE_CLASS(0x1e0e, 0x9011, 0xff),	/* Simcom SIM7500/SIM7600 RNDIS mode */
-	  .driver_info = RSVD(7) },
-	{ USB_DEVICE_INTERFACE_CLASS(0x1e0e, 0x9205, 0xff) },	/* Simcom SIM7070/SIM7080/SIM7090 AT+ECM mode */
-	{ USB_DEVICE_INTERFACE_CLASS(0x1e0e, 0x9206, 0xff) },	/* Simcom SIM7070/SIM7080/SIM7090 AT-only mode */
 	{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S_X200),
 	  .driver_info = NCTRL(0) | NCTRL(1) | RSVD(4) },
 	{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X220_X500D),
@@ -1903,8 +1862,6 @@
 	  .driver_info = RSVD(4) },
 	{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX_2RMNET, 0xff) },
 	{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX_AUDIO, 0xff) },
-	{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_CLS8, 0xff),
-	  .driver_info = RSVD(0) | RSVD(4) },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDM) },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDMNET) },
 	{ USB_DEVICE(SIEMENS_VENDOR_ID, CINTERION_PRODUCT_HC25_MDM) },
@@ -1998,8 +1955,6 @@
 	{ USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM2, 0xff, 0x02, 0x01) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM2, 0xff, 0x00, 0x00) },
 	{ USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MEN200) },
-	{ USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MPL200),
-	  .driver_info = RSVD(1) | RSVD(4) },
 	{ USB_DEVICE(PETATEL_VENDOR_ID, PETATEL_PRODUCT_NP10T_600A) },
 	{ USB_DEVICE(PETATEL_VENDOR_ID, PETATEL_PRODUCT_NP10T_600E) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(TPLINK_VENDOR_ID, TPLINK_PRODUCT_LTE, 0xff, 0x00, 0x00) },	/* TP-Link LTE Module */
@@ -2011,28 +1966,17 @@
 	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d01, 0xff) },			/* D-Link DWM-156 (variant) */
 	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d02, 0xff) },
 	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d03, 0xff) },
-	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d04, 0xff),			/* D-Link DWM-158 */
-	 .driver_info = RSVD(4) | RSVD(5) },
+	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d04, 0xff) },			/* D-Link DWM-158 */
 	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d0e, 0xff) },			/* D-Link DWM-157 C1 */
 	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e19, 0xff),			/* D-Link DWM-221 B1 */
 	  .driver_info = RSVD(4) },
 	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e35, 0xff),			/* D-Link DWM-222 */
 	  .driver_info = RSVD(4) },
-	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e3d, 0xff),			/* D-Link DWM-222 A2 */
-	  .driver_info = RSVD(4) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) },	/* D-Link DWM-152/C1 */
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e02, 0xff, 0xff, 0xff) },	/* D-Link DWM-156/C1 */
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x7e11, 0xff, 0xff, 0xff) },	/* D-Link DWM-156/A3 */
-	{ USB_DEVICE_INTERFACE_CLASS(0x1435, 0xd191, 0xff),			/* Wistron Neweb D19Q1 */
-	  .driver_info = RSVD(1) | RSVD(4) },
-	{ USB_DEVICE_INTERFACE_CLASS(0x1690, 0x7588, 0xff),			/* ASKEY WWHC050 */
-	  .driver_info = RSVD(1) | RSVD(4) },
 	{ USB_DEVICE_INTERFACE_CLASS(0x2020, 0x2031, 0xff),			/* Olicard 600 */
 	  .driver_info = RSVD(4) },
-	{ USB_DEVICE_INTERFACE_CLASS(0x2020, 0x2033, 0xff),			/* BroadMobi BM806U */
-	  .driver_info = RSVD(4) },
-	{ USB_DEVICE_INTERFACE_CLASS(0x2020, 0x2060, 0xff),			/* BroadMobi BM818 */
-	  .driver_info = RSVD(4) },
 	{ USB_DEVICE_INTERFACE_CLASS(0x2020, 0x4000, 0xff) },			/* OLICARD300 - MT6225 */
 	{ USB_DEVICE(INOVIA_VENDOR_ID, INOVIA_SEW858) },
 	{ USB_DEVICE(VIATELECOM_VENDOR_ID, VIATELECOM_PRODUCT_CDS7) },
@@ -2045,19 +1989,12 @@
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x13) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x14) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x1b) },
-	{ USB_DEVICE(0x0489, 0xe0b4),						/* Foxconn T77W968 */
-	  .driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
-	{ USB_DEVICE(0x0489, 0xe0b5),						/* Foxconn T77W968 ESIM */
-	  .driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
 	{ USB_DEVICE(0x1508, 0x1001),						/* Fibocom NL668 */
 	  .driver_info = RSVD(4) | RSVD(5) | RSVD(6) },
 	{ USB_DEVICE(0x2cb7, 0x0104),						/* Fibocom NL678 series */
 	  .driver_info = RSVD(4) | RSVD(5) },
 	{ USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x0105, 0xff),			/* Fibocom NL678 series */
 	  .driver_info = RSVD(6) },
-	{ USB_DEVICE_INTERFACE_CLASS(0x305a, 0x1404, 0xff) },			/* GosunCn GM500 RNDIS */
-	{ USB_DEVICE_INTERFACE_CLASS(0x305a, 0x1405, 0xff) },			/* GosunCn GM500 MBIM */
-	{ USB_DEVICE_INTERFACE_CLASS(0x305a, 0x1406, 0xff) },			/* GosunCn GM500 ECM/NCM */
 	{ } /* Terminating entry */
 };
 MODULE_DEVICE_TABLE(usb, option_ids);
@@ -2092,6 +2029,9 @@
 #ifdef CONFIG_PM
 	.suspend           = usb_wwan_suspend,
 	.resume            = usb_wwan_resume,
+#if 1 //Added by Quectel
+	.reset_resume = usb_wwan_resume,
+#endif
 #endif
 };
 
@@ -2109,6 +2049,55 @@
 	struct usb_device_descriptor *dev_desc = &serial->dev->descriptor;
 	unsigned long device_flags = id->driver_info;
 
+#if 1 //Added by Quectel
+	//Quectel UC20's interface 4 can be used as USB Network device
+	if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) && serial->dev->descriptor.idProduct == cpu_to_le16(0x9003)
+		&& serial->interface->cur_altsetting->desc.bInterfaceNumber >= 4)
+		return -ENODEV;
+
+	//Quectel EC20(MDM9215)'s interface 4 can be used as USB Network device
+	if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) && serial->dev->descriptor.idProduct == cpu_to_le16(0x9215)
+		&& serial->interface->cur_altsetting->desc.bInterfaceNumber >= 4)
+		return -ENODEV;
+
+	if (serial->dev->descriptor.idVendor == cpu_to_le16(0x2C7C)) {
+		__u16 idProduct = le16_to_cpu(serial->dev->descriptor.idProduct);
+		struct usb_interface_descriptor *intf = &serial->interface->cur_altsetting->desc;
+
+		if (intf->bInterfaceClass != 0xFF) {
+			//ECM, RNDIS, MBIM, ACM, UAC
+			if (idProduct == 0x6004
+		                && intf->bInterfaceNumber > 1
+				&& intf->bInterfaceClass == 0x0A) {
+				//EG060V cdc-acm interface force bind option
+			}
+			else {
+				return -ENODEV;
+			}
+		}
+		else if (intf->bInterfaceSubClass == 0x42) {
+			//ADB
+			return -ENODEV;
+		}
+		else if ((idProduct&0xF000) == 0x6000) {
+			//ASR
+		}
+		else if ((idProduct&0xF000) == 0x8000) {
+			//HISI
+			if (intf->bInterfaceNumber == 0)
+				return -ENODEV;
+		}
+		else if ((idProduct&0xFF00) == 0x0900) {
+			//UNISOC
+		}
+		else if ((idProduct&0xF000) == 0x0000) {
+			//MDM interface 4 is QMI
+			if (intf->bInterfaceNumber == 4 && intf->bNumEndpoints == 3)
+				return -ENODEV;
+		}
+	}
+#endif
+
 	/* Never bind to the CD-Rom emulation interface	*/
 	if (iface_desc->bInterfaceClass == 0x08)
 		return -ENODEV;
@@ -2160,9 +2149,6 @@
 	if (!(device_flags & NCTRL(iface_desc->bInterfaceNumber)))
 		data->use_send_setup = 1;
 
-	if (device_flags & ZLP)
-		data->use_zlp = 1;
-
 	spin_lock_init(&data->susp_lock);
 
 	usb_set_serial_data(serial, data);
--- a/drivers/usb/serial/qcserial.c	2020-11-10 12:10:29.000000000 -0800
+++ b/drivers/usb/serial/qcserial.c	2021-02-04 22:13:35.000000000 -0800
@@ -67,7 +67,7 @@
 	{DEVICE_G1K(0x05c6, 0x9202)},	/* Generic Gobi Modem device */
 	{DEVICE_G1K(0x05c6, 0x9203)},	/* Generic Gobi Modem device */
 	{DEVICE_G1K(0x05c6, 0x9222)},	/* Generic Gobi Modem device */
-	{DEVICE_G1K(0x05c6, 0x9008)},	/* Generic Gobi QDL device */
+	//{DEVICE_G1K(0x05c6, 0x9008)},	/* Generic Gobi QDL device */
 	{DEVICE_G1K(0x05c6, 0x9009)},	/* Generic Gobi Modem device */
 	{DEVICE_G1K(0x05c6, 0x9201)},	/* Generic Gobi QDL device */
 	{DEVICE_G1K(0x05c6, 0x9221)},	/* Generic Gobi QDL device */
@@ -159,7 +159,6 @@
 	{DEVICE_SWI(0x1199, 0x9056)},	/* Sierra Wireless Modem */
 	{DEVICE_SWI(0x1199, 0x9060)},	/* Sierra Wireless Modem */
 	{DEVICE_SWI(0x1199, 0x9061)},	/* Sierra Wireless Modem */
-	{DEVICE_SWI(0x1199, 0x9062)},	/* Sierra Wireless EM7305 QDL */
 	{DEVICE_SWI(0x1199, 0x9063)},	/* Sierra Wireless EM7305 */
 	{DEVICE_SWI(0x1199, 0x9070)},	/* Sierra Wireless MC74xx */
 	{DEVICE_SWI(0x1199, 0x9071)},	/* Sierra Wireless MC74xx */
@@ -178,8 +177,6 @@
 	{DEVICE_SWI(0x413c, 0x81b3)},	/* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
 	{DEVICE_SWI(0x413c, 0x81b5)},	/* Dell Wireless 5811e QDL */
 	{DEVICE_SWI(0x413c, 0x81b6)},	/* Dell Wireless 5811e QDL */
-	{DEVICE_SWI(0x413c, 0x81cb)},	/* Dell Wireless 5816e QDL */
-	{DEVICE_SWI(0x413c, 0x81cc)},	/* Dell Wireless 5816e */
 	{DEVICE_SWI(0x413c, 0x81cf)},   /* Dell Wireless 5819 */
 	{DEVICE_SWI(0x413c, 0x81d0)},   /* Dell Wireless 5819 */
 	{DEVICE_SWI(0x413c, 0x81d1)},   /* Dell Wireless 5818 */
--- a/drivers/usb/serial/usb_wwan.c	2020-11-10 12:10:29.000000000 -0800
+++ b/drivers/usb/serial/usb_wwan.c	2021-02-04 22:13:35.000000000 -0800
@@ -302,10 +302,6 @@
 	if (status) {
 		dev_dbg(dev, "%s: nonzero status: %d on endpoint %02x.\n",
 			__func__, status, endpoint);
-
-		/* don't resubmit on fatal errors */
-		if (status == -ESHUTDOWN || status == -ENOENT)
-			return;
 	} else {
 		if (urb->actual_length) {
 			tty_insert_flip_string(&port->port, data,
@@ -496,7 +492,6 @@
 				      void (*callback) (struct urb *))
 {
 	struct usb_serial *serial = port->serial;
-	struct usb_wwan_intf_private *intfdata = usb_get_serial_data(serial);
 	struct urb *urb;
 
 	urb = usb_alloc_urb(0, GFP_KERNEL);	/* No ISO */
@@ -507,8 +502,18 @@
 			  usb_sndbulkpipe(serial->dev, endpoint) | dir,
 			  buf, len, callback, ctx);
 
-	if (intfdata->use_zlp && dir == USB_DIR_OUT)
-		urb->transfer_flags |= URB_ZERO_PACKET;
+#if 1 //Added by Quectel for Zero Packet
+	if (dir == USB_DIR_OUT) {
+		if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) && serial->dev->descriptor.idProduct == cpu_to_le16(0x9090))
+			urb->transfer_flags |= URB_ZERO_PACKET;
+		if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) && serial->dev->descriptor.idProduct == cpu_to_le16(0x9003))
+			urb->transfer_flags |= URB_ZERO_PACKET;
+		if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) && serial->dev->descriptor.idProduct == cpu_to_le16(0x9215))
+			urb->transfer_flags |= URB_ZERO_PACKET;
+		if (serial->dev->descriptor.idVendor == cpu_to_le16(0x2C7C))
+			urb->transfer_flags |= URB_ZERO_PACKET;
+	}
+#endif
 
 	return urb;
 }

--- a/drivers/usb/serial/usb-wwan.h	2020-11-10 12:10:29.000000000 -0800
+++ b/drivers/usb/serial/usb-wwan.h	2021-02-04 22:07:03.000000000 -0800
@@ -36,7 +36,6 @@
 	spinlock_t susp_lock;
 	unsigned int suspended:1;
 	unsigned int use_send_setup:1;
-	unsigned int use_zlp:1;
 	int in_flight;
 	unsigned int open_ports;
 	void *private;

重命名（0999-add-mt7628-ec200a-drivers.patch）然后将生成的文件拷贝到 target/linux/ramips/patches-4.14 （硬件mtk7628）
在这里插入图片描述
由于打补丁方式需要make clean 才会在下一次的 make V=s -j8 打入补丁

编译好后，检查一下是否成功打入补丁

在这里插入图片描述

进阶篇：OpenWrt网络优化，提升网络稳定性

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OpenWRT移植EC200A驱动，并实现wifi和lan的上网，及wan和4g的负载均衡（五）

网卡驱动方式

移远资料：

移远4G模组驱动移植（其实移远都已经修改驱动文件）

USB转串口驱动移植

添加对应的 VID 和 PID

添加 USB 零包机制

增加复位恢复机制

使用ECM or RNDIS

openwrt 配置

选择CPU 及编译目标

内核USB 驱动相关配置

编译openwrt系统

方式一 ppp 拨号

方式二 ECM与RNDIS 方式（30~50Mpbs）

进阶方式移植EC200A

概述

OpenWrt移植EC200A驱动

OpenWRT移植EC200A驱动，并实现wifi和lan的上网，及wan和4g的负载均衡（五） 的相关文章

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