WhyCan Forum(哇酷开发者社区)

static const struct usb_device_id option_ids[] = {
#if 1 //Added by Quectel
{ USB_DEVICE(0x2C7C, 0x6002) }, /* Quectel EC200S */
#endif

static struct urb *usb_wwan_setup_urb(struct usb_serial *serial, int endpoint,
 int dir, void *ctx, char *buf, int len,void (*callback) (struct urb *))
{
……
usb_fill_bulk_urb(urb, serial->dev,
 usb_sndbulkpipe(serial->dev, endpoint) | dir,
 buf, len, callback, ctx);
#if 1 //Added by Quectel for zero packet
if (dir == USB_DIR_OUT) {
struct usb_device_descriptor *desc = &serial->dev->descriptor;
if (desc->idVendor == cpu_to_le16(0x2C7C))
urb->transfer_flags |= URB_ZERO_PACKET;
}
#endif
return urb;
}

static struct usb_serial_driver option_1port_device = {
……
#ifdef CONFIG_PM
.suspend = usb_wwan_suspend,
.resume = usb_wwan_resume,
#if 1 //Added by Quectel
.reset_resume = usb_wwan_resume,
#endif
#endif
};

ls /dev/ttyUSB* 

ifconfig usb1 up
udhcpc -i usb1

cat /dev/ttyUSB2 &
# 设置为RNDIS模式
echo -e "AT+QCFG=\"usbnet\",3\r\n" > /dev/ttyUSB2 
# 查询指令是否生效
echo -e "AT+QCFG=\"usbnet\"\r\n" > /dev/ttyUSB2 
# 发送 AT 指令拨号上网指令
echo -e "AT+qnetdevctl=1,1\r\n" > /dev/ttyUSB2

echo -e "AT+QCCID\r\n" >/dev/ttyUSB2    //查询SIM卡
echo -e "AT+CFUN=1,1\r\n" >/dev/ttyUSB2   //重启模块
echo -e "AT+QSIMDET=1\r\n" >/dev/ttyUSB2   //开启SIM卡热插拔状态报告
echo -e "AT+QSIMDET=1,1\r\n" >/dev/ttyUSB2  //开启SIM卡检测功能
echo -e "AT+CSQ\r\n" >/dev/ttyUSB2  //查询信号强度
echo -e "AT+QNWINFO\r\n" >/dev/ttyUSB2 //查询网络状态
echo -e "AT+QCFG=\"NWSCANMODE\",3,1\r\n" >/dev/ttyUSB2 //设置4G LTE only
echo -e "AT+QCFG=\"NWSCANMODE\",2,1\r\n" >/dev/ttyUSB2 //设置3G WCDMA only
echo -e "AT+QCFG=\"NWSCANMODE\",1,1\r\n" >/dev/ttyUSB2 //设置2G GSM only
echo -e "AT+QCFG=\"NWSCANMODE\",0,1\r\n" >/dev/ttyUSB2 //设置自动搜索网络

# AT+QSIMDET=1,1或AT+QSIMDET=1,0开启     可以设置高电平  或者低电平有效//SIM卡热拔插，同一个电路 肯定不可以设置两种sim卡检测状态   要么高电平有效  要么低电平有效
# AT+QSIMDET=0  关闭热拔插功能
# 通过AT命令开启SIM卡检查功能

# 举例：
# AT+QSIMSTAT=1          //开启SIM卡热拔插状态报告
# AT+QSIMDET=1,1或AT+QSIMDET=1,0//开启 SIM卡检测功能
# 当SIM卡拔出或者插上的时候，模块会有相应的提示：
# +CPIN:NOT READY
# AT+QSIMSTAT=1,1或AT+QSIMSTAT=1,0
# Call Ready