attaching ugen(4) on multi interface USB devices

[Niki Denev]

Hello everyone!, 

The last 1-2 days i've been trying to make some userspace OBEX utilities to 
work with a USB based Nokia GSM phone and doing this i discovered something 
that confuses me a little:
The phone in question is Nokia 6230 and it has an USB interface.
The phone has 11 interface descriptors,
2 of them are used for the Modem and CM over data.
Judging from the windows drivers it seems that four of the other interfaces
are OBEX compatible.
But if i kldload umodem and plug the phone it detects only one ucom(4).
and if i plug the phone without any u* modules loaded the kernel attaches
ugen0 only.
>From what i understand it attaches the ugen0 using the info in the first 
interface descriptor in the device.
Wouldn't it be more usefull for the kernel to attach ugen for every unknown 
interface in a device.
For example when attaching the phone with umodem loaded, i will get
the ucom(4) device and the other unrecognised interfaces will show up as 
ugens ?
What do you think about that?


P.S.: anyone know some good way to list the attached usb devices beyond 
usbdevs?
It seems that the information that can be gathered from usbdevs is very 
limited. For example 'lsusb' in linux can show much more info. What do you 
think about that too?


Thanks in advance for any info and/or flames :)


--niki
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