2014-03-31 18:25 GMT-03:00 Jerônimo Lopes :
> Long story, I'm trying to setup a system using Buildroot, Beaglebone
> Black, Connman, Ofono, and 3G USB dongles to connect to the internet.
>
> I have 3 usb dongles (names showed at their plastic case):
> - ZTE MF-190: not working
> - Huawei E173: not working
> - Huawei E160: working
>
> I'm attaching some log information of the dongles.
>
> Both not working ones, are working at a PC with Ubuntu 13.10. Also they
> are recognized as the same device on Beaglebone and PC.
>
> I'm aware that it's probably not a 'Ofono problem'. I'm using buildroot
> default kernel for the Beaglebone and set some options myself, like USB
> Serial Converter (not enabled by default), so there is a big probability
> that something is missing.
>
> Best regards.
>
I have some more information about this problem.
The dongle is called ZTE MF-190. As said before, this dongle works nice in
ubuntu 13.10, with NetworkManager.
Kernel reconizes it as:
ID 0685:7000 ZD Incorporated HSDPA Modem (before switch)
Then Kernel itself (not usb-modeswitch) switches to:
ID 12d1:1001 Huawei Technologies Co., Ltd. E169/E620/E800 HSDPA Modem
And creates 4 tty devices:
[ 28.798238] usbcore: registered new interface driver option
[ 28.815415] usbserial: USB Serial support registered for GSM modem
(1-port)
[ 28.832826] option 2-1.1.4:1.0: GSM modem (1-port) converter detected
[ 28.848742] usb 2-1.1.4: GSM modem (1-port) converter now attached to
ttyUSB0
[ 28.857913] option 2-1.1.4:1.1: GSM modem (1-port) converter detected
[ 28.866902] usb 2-1.1.4: GSM modem (1-port) converter now attached to
ttyUSB1
[ 28.875310] option 2-1.1.4:1.2: GSM modem (1-port) converter detected
[ 28.883900] usb 2-1.1.4: GSM modem (1-port) converter now attached to
ttyUSB2
[ 28.891824] option 2-1.1.4:1.3: GSM modem (1-port) converter detected
[ 28.900624] usb 2-1.1.4: GSM modem (1-port) converter now attached to
ttyUSB3
Then, if I start ofono, this is what I get in the end:
ofonod[218]: src/modem.c:get_modem_property() modem 0x1011f0 property Modem
ofonod[218]: plugins/huawei.c:open_device() Modem /dev/ttyUSB0
ofonod[218]: src/modem.c:get_modem_property() modem 0x1011f0 property Pcui
ofonod[218]: plugins/huawei.c:open_device() Pcui /dev/ttyUSB3
ofonod[218]: Modem: > ATE0 +CMEE=1\r
ofonod[218]: PCUI: > ATE0 +CMEE=1\r
ofonod[218]: Modem: < \r\nOK\r\n
ofonod[218]: src/modem.c:set_powered_timeout() modem: 0x1011f0
Well, I've tried sending this AT commands manually on all tty devices, only
ttyUSB0 and ttyUSB2 are responding, to any command.
After that, I've changed "setup_huawei" at plugins/udevng.c to force Pcui
to point to ttyUSB2, but then I got stuck at the next AT commnad, 'ATI':
ofonod[241]: src/modem.c:get_modem_property() modem 0x1909b0 property Modem
ofonod[241]: plugins/huawei.c:open_device() Modem /dev/ttyUSB0
ofonod[241]: src/modem.c:get_modem_property() modem 0x1909b0 property Pcui
ofonod[241]: plugins/huawei.c:open_device() Pcui /dev/ttyUSB2
ofonod[241]: Modem: > ATE0 +CMEE=1\r
ofonod[241]: PCUI: > ATE0 +CMEE=1\r
ofonod[241]: Modem: < \r\nOK\r\n
ofonod[241]: PCUI: < \r\nOK\r\n
ofonod[241]: PCUI: > ATI\r
Again, if tried manually send ATI commnad, but then something really weird
happens, in both ttyUSB0 and ttyUSB2:
- I send "ATI" command, and get no response back, no matter how much time
I wait.
- I send 2 "AT" commands, and then I get "ATI" response, like that:
ATI
AT
AT
Manufacturer: huawei
Model: E1750
Revision: HSDPA_6281_V002
OK
351753032849324
+GCAP: +CGSM,+DS,+ES
OK
OK
So, can anyone give me a clue of what to do next?
Best Regards,
Jerônimo Lopes
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