[Ltib] Sierra 3G modem not working on Phytec Board. (/proc/bus/usb directory not found.)

[Quentin YANG]

Hi,


My Phytec board is running Linux (2.6.27.8) built from LTIB 
(LinuxTargetImageBuilder). 

http://www.phytec.com/products/linux/bsp-LPC3250.html
http://ics.nxp.com/support/software/lpc32xx.bsp.linux/

http://www.bitshrine.org/ltib/


I can see usbserial, 
sierra modules are successfully compiled and created 
using the console of 
Phytec board (using on board UART5 terminal as 
console)

./lib/modules/2.6.27.8/kernel/drivers/usb/serial/usbserial.ko
./lib/modules/2.6.27.8/kernel/drivers/usb/serial/sierra.ko

But 
after inserting 3G Modem MC8790V, 

1. usbserial, sierra modules are not 
automatically installed after Kernel has detected new USB endpoints.

2. 
After manually installed the usbserial, sierra modules by 'insmod' command. 
It shows 'ttyUSB0' is attached, but no 'ttyUSB0' node created under ' /dev 
'

3. Also, during boot-up, there is always message saying:

     '
          ............................
          Mounting filesystems
          mount: mounting usbfs on /proc/bus/usb failed: No such file or directory
          .........................
    '


I attached all print (TargetPhytecBoardLinuxPrint.txt) from Phytec 
Linux Console.

I suspect that I didnot config the kernel properly. 
Do 
you have the recommend '.config' for Linux kernel compiling 
so that Sierra 
Modem can work smoothly? 

I attached the one (.config) I used to build 
Phytec Target Linux Image. 
(I enabled usbserial driver, sierra wireless 
driver to be compiled as modules. 
What other packages I must enabled to get 
Sierra Wireless Modem work?)

Thanks and hope you can spot something I've 
done wrong.

Regards,
Quentin

TargetPhytecBoardLinuxPrint.txt
Description: Text document

.config
Description: Binary data