Re: [Bug 10868] Oops on loading ipaq module since 2.6.26, prevents use of device

[Oliver Neukum]

Am Montag 07 Juli 2008 20:16:02 schrieb Matthias Geissert:
> Am Donnerstag, 3. Juli 2008 16:08:44 schrieb Oliver Neukum:
> 
> 
> > >  	.num_interrupt_in =	NUM_DONT_CARE,
> > > -	.num_bulk_in =		1,
> > > -	.num_bulk_out =		1,
> > > -	.num_ports =		1,
> > > +	.num_bulk_in =		NUM_DONT_CARE,
> > > +	.num_bulk_out =		NUM_DONT_CARE,
> >
> > This is good.
> >
> > > +	.num_ports =		2,
> >
> > This is fatal.
> 
> I checked what you said with kernel 2.6.26 rc9.  I set num_ports to 5. It 
> worked quite well until I tried to connect to a non-existing endpoint. 
> 
> However, the problem is that the Yakumo Delta needs to connect to the 2nd 
> endpoint. You can connect to the first one but you don't get any data. 
> 
> Is there any good way to tell the ipaq driver to use the 2nd endpoint? Maybe 
> one could provide a different struct usb_serial_driver ipaq_device depending 
> on the usb id or an option which tells the driver to use 2 endpoints.

If only these devices have a second input endpoint, we can detect that
in attach().

	Regards
		Oliver
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