On Mon, 17 May 2004 08:47:27 -0500
"Lonnie Mendez" <[EMAIL PROTECTED]> wrote:

> I'm using the usb-uhci driver (this will also happen on the uhci driver) on
> vanilla kernel 2.4.26.  Problem will not occur in 2.6.x

> When sending an urb down the interrupt out pipe, it will succede the first
> time.  But then the next time I try this, usb-uhci will give me this error
> message:
> 
> this occurs on or near line 1664 of usb-uhci.c
> 
> usb-uhci.c ENXIO 40010200, flags 0, urb cf5734a0, burb cf573c20
> test_int_urb.c: usb_submit_urb failed with status -6
>[...]

It is supposed to work this way if your interval is not zero, which
is the default. If you want a one shot interrupt transfer, you must
zero the interval.

Please refer to function  process_interrupt() in usb-uhci and to
function sohci_return_urb() in usb-ohci.

It is very likely that 2.6 is different and either requires manual
resubmissions (or usb->next set), or it defaults to zero interval,
but I do not know for sure. Haven't looking at the source for a while.

-- Pete


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