Re: udev doesn't recognize my gsm dongle

[Dan Williams <dcbw redhat com>]

On Mon, 2010-02-08 at 17:07 +0100, Maxime Boure wrote:
> Thank for this answer !
> 
> It is really helpful. I tried the lshal at boot and no device is
> seen ... I assume that is the problem !

Yeah, likely.  HAL requires that the device (a) have a driver, and (b)
have the right sysfs links set up before it shows up in HAL.  This
particular Huawei device is driven by the 'option' driver, so can you 

> But now I don't know what to do to get hal to recognize the dongle at
> boot. I don't get any print from udev at boot it must be a redirection
> to /dev/null/ but nm-modem-probe is for sure called with good
> informations I managed to display them.
> 
> Concerning prints at boot I got that :  
> 
> [   20.445983] usb 1-1: new high speed USB device using ehci-omap and
> address 3
> [   20.624420] usb 1-1: configuration #1 chosen from 1 choice
> [   20.651214] usb-storage: probe of 1-1:1.0 failed with error -5
> [   20.702789] usb-storage: probe of 1-1:1.1 failed with error -5
> [   20.766571] 
> [   20.766571] usb_stor_huawei_e220_init
> [   20.772644] usb-storage: probe of 1-1:1.2 failed with error -1
> [   20.804779] 
> [   20.804779] usb_stor_huawei_e220_init
> [   20.810913] usb-storage: probe of 1-1:1.3 failed with error -1
> [   20.817810] usb 1-1: New USB device found, idVendor=12d1,
> idProduct=1003
> [   20.824676] usb 1-1: New USB device strings: Mfr=2, Product=1,
> SerialNumber=0
> [   20.831909] usb 1-1: Product: HUAWEI Mobile
> [   20.836120] usb 1-1: Manufacturer: HUAWEI Technology

When this error occurs, do you have any /dev/ttyUSB* nodes?

> Do you think that nm-modem-probe doesn't recognize the device I tried
> the command from the udev rule after booting with the dongle plugged
> before boot :
> /lib/udev# nm-modem-probe --vid  0x12d1 --pid  0x1003 --usb-interface
> 00 01 --driver  option --delay 1000 --timeout 5000 --export --verbose
> --log /tmp/probe.log
> L: (946685003.877166) main(): (01): usb-vid 0x12d1  usb-pid 0x1003
> usb-intf 0  driver 'option'
> L: (946685003.877380) main(): waiting 1000 ms before probing
> L: (946685004.877807) main(): probing 01
> E: (946685009.983703) open(01) failed: 2

This is probably related to the issue above with the kernel USB
messages.  Basically, if you never see /dev/ttyUSB* then we either have
driver problems of kernel USB stack issues.

> Does that speak to you ? the error at opening means it doesn't see it
> either ?
> The more I try to understand things the more I get lost TT

NM 0.8 works better here because it uses only udev for device detection,
which means one fewer layer that can go wrong.

Dan