attaching ugen(4) on multi interface USB devices

[Brian Fundakowski Feldman]

On Wed, Oct 06, 2004 at 09:48:49AM -0400, Mathew Kanner wrote:
> On Oct 06, Niki Denev wrote:
> > 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 :)
> 
> 	I seem to recall a problem with ugen that it doesn't discover
> endpoints on alt-interfaces.  I've posted patches to this mailing list
> to work around the problem.	

It doesn't work when you call USB_SET_ALTINTERFACE then USB_SET_CONFIG?

-- 
Brian Fundakowski Feldman                           \'[ FreeBSD ]''''''''''\
  <> green at FreeBSD.org                               \  The Power to Serve! \
 Opinions expressed are my own.                       \,,,,,,,,,,,,,,,,,,,,,,\