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AbhinavDS / 0xdroid

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HuaWei E220 USB 3G modem doesn't work on devkit8k board with eclair r4. #96

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
Hareware: Devkit8k
Software: Eclair R4
Modem:    HuaWei E220 USB 3G modem

What steps will reproduce the problem?
0.Config the latest kernel of 0xlab to enable PPP driver and 
CONFIG_USB_SERIAL_OPTION;
1.Boot up the devkit8k board with the new kernel;
2.Plug the modem into USB host of devkit8k;
3.Form the logcat I can only get a line shown below:
    # hub 1-0:1.0: unable to enumerate USB device on port 1
4.I tried to use a usb hub between devkit8k and modem, but it didn't help;

What is the expected output? What do you see instead?
1. There should be new node /dev/ttyUSB0 at least.

Thanks,
Michael

Original issue reported on code.google.com by michael.leo.wang2010 on 29 Apr 2010 at 9:42

GoogleCodeExporter commented 8 years ago 
Added cc list

Original comment by jserv.tw@gmail.com on 1 May 2010 at 5:03

GoogleCodeExporter commented 8 years ago 
hi Michael,
What's the progress?  If it works for you, please post the instructions along 
with the patches.  Thanks in 
advance.

Original comment by jserv.tw@gmail.com on 17 May 2010 at 4:23

GoogleCodeExporter commented 8 years ago 
hi jserv,

  After I use a usb hub with power supply, I can get two dev nodes -- /dev/ttyUSB0,
/dev/ttyUSB1 -- when I plug in the usb modem.

  I use ttyUSB1 for both pppd and rild, and now I can send and receive text messages
properly. But I still can't use the 3G modem to surf the net. Maybe I still 
need to
do some extra work to make it work well, and I am trying to deal with the 
problem by
study the relative codes deeply.

  When I have good news, I will tell you fine guys!

Thanks,
Michael

Original comment by michael.leo.wang2010 on 17 May 2010 at 5:10

GoogleCodeExporter commented 8 years ago 
Any update?

Original comment by jserv.tw@gmail.com on 5 Jul 2010 at 12:21

GoogleCodeExporter commented 8 years ago 
Hi,

  Now I could surf the net after I set up APN info within setup icon. But sometimes I just couldn't save the APN info when doing set action on setup UI, and the net connection is not stable using the 3G modem.

Br,
Michael

Original comment by michael.leo.wang2010 on 8 Jul 2010 at 6:03