Openwrt 3G module and openwrt3 g Module

Openwrt 3G module and openwrt3 g Module

Hardware environment:

The Development Board is RT5053F.

The 3G module is for ZTE MC2176 Telecom

The procedure is as follows:

• Add VID and PID

  You can obtain the VID and PID by inserting the device into your computer and running the lsusb command in linux,

  
  
  Or add all IDS supported by the product to the option. c file according to the wireless module driver user manual.

  Openwrt-1407 in the following location: build_dir/target-mipsel_24kec + dsp_uClibc-0.9.33.2/linux-ramips_mt7620n/drivers/usb/serial/option. c

  
  
• Kernel compilation Configuration

  make kernel_ menuconfig

  Configuration items related to USB serial port driver:

  Device Drivers  ---> [*] USB support  --->   <*>   Support for Host-side USB[*]     USB announce new devices[*]     Enable USB persist by default<*>     EHCI HCD (USB 2.0) support[*]       Root Hub Transaction Translators[*]       Improved Transaction Translator scheduling<*>     OHCI HCD (USB 1.1) support<*>     USB Modem (CDC ACM) support<*>     USB Printer support<*>     USB Wireless Device Management support<*>   USB Serial Converter support  ---> <*>   USB driver for GSM and CDMA modems

  Configuration of PPP Dialing:

  Device Drivers  ---> [*] Network device support  ---><*>   PPP (point-to-point protocol) support<*>     PPP BSD-Compress compression<*>     PPP Deflate compression[*]     PPP filtering<*>     PPP MPPE compression (encryption)[*]     PPP multilink support<*>     PPP over Ethernet<*>     PPP support for async serial ports<*>     PPP support for sync tty ports

  Required software packages:

  pppchatcomgtlibrtlibusb-1.0usb-modeswithzlib

  Save and execute make V = 99 and then burn the compiled image file to the Development Board. Start the Development Board

  
  

Configure the network

/etc/config/networkconfig interface 'ppp0'        option ifname 'ppp0'        option service 'evdo'        option username 'card'        option password 'card'        option device '/dev/ttyUSB0'        option proto '3g'        option dialnumber '#777'        option apn 'ctnet'        option auto 1

Restart the network

/etc/init.d/netwrok restart

Run the ifcong command after restart. If the ppp interface is displayed, the dial is successful,