【imx6ul】SIM7600CE 4G模块在imx6ul linux4.15上拨号上网
1、增加USB Serial内核驱动
CONFIG_USB_SERIAL=y
CONFIG_USB_SERIAL_WWAN=y
CONFIG_USB_SERIAL_OPTION=y
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 204cd83..a8a80c7 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -96,6 +96,10 @@ static void option_instat_callback(struct urb *urb);#define NOVATELWIRELESS_VENDOR_ID 0x1410+#define SIMCOM_SIM7600_VID 0x1E0E
+
+#define SIMCOM_SIM7600_PID 0x9001
+/* YISO PRODUCTS */#define YISO_VENDOR_ID 0x0EAB
@@ -533,6 +537,9 @@ static const struct option_blacklist_info alcatel_x200_blacklist = {.sendsetup = BIT(0) | BIT(1),.reserved = BIT(4),};
+static const struct option_blacklist_info simcom_sim7600_blacklist = {
+ .reserved = BIT(5),
+};static const struct option_blacklist_info zte_0037_blacklist = {.sendsetup = BIT(0) | BIT(1),
@@ -675,6 +682,8 @@ static const struct usb_device_id option_ids[] = {.driver_info = (kernel_ulong_t) &net_intf1_blacklist },{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4605, 0xff, 0xff, 0xff),.driver_info = (kernel_ulong_t) &huawei_cdc12_blacklist },
+ { USB_DEVICE(SIMCOM_SIM7600_VID, SIMCOM_SIM7600_PID),
+ .driver_info = (kernel_ulong_t) &simcom_sim7600_blacklist },{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0xff, 0xff) },{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x01) },{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x02) },
添加成功后，将打印如下信息：
usb 1-1.4: new high-speed USB device number 5 using ci_hdrc
option 1-1.4:1.0: GSM modem (1-port) converter detected
usb 1-1.4: GSM modem (1-port) converter now attached to ttyUSB0
option 1-1.4:1.1: GSM modem (1-port) converter detected
usb 1-1.4: GSM modem (1-port) converter now attached to ttyUSB1
option 1-1.4:1.2: GSM modem (1-port) converter detected
usb 1-1.4: GSM modem (1-port) converter now attached to ttyUSB2
option 1-1.4:1.3: GSM modem (1-port) converter detected
usb 1-1.4: GSM modem (1-port) converter now attached to ttyUSB3
option 1-1.4:1.4: GSM modem (1-port) converter detected
usb 1-1.4: GSM modem (1-port) converter now attached to ttyUSB4
option 1-1.4:1.6: GSM modem (1-port) converter detected
usb 1-1.4: GSM modem (1-port) converter now attached to ttyUSB52、增加USN NDIS NET相关驱动
CONFIG_USBNET=y
同时编译sim7500_sim7600_wwan.c驱动，加载驱动后，成功提示：
simcom_wwan 1-1.4:1.5 wwan0: register 'simcom_wwan' at usb-ci_hdrc.1-1.4, SIMCOM wwan/QMI device, 0a:75:ad:60:5d:d6
usbcore: registered new interface driver simcom_wwan注意不要使用linux4.15内核自带的qmi wwan驱动，虽然该驱动同样会正常提示打印出wwan0网卡，但是在拨号的时候总是不成功。
产生wwan0网卡：
3、拨号上网
echo "AT\$QCRMCALL=1,1" > /dev/ttyUSB3 #拨号上网
udhcpc -i wwan0 #获取ip
ping 8.8.8.8 #ping外网测试
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