Okay. This is confusion. The original report was that when a _bulk_ pipe stalled, the attempt to clear the stall also reported -EPIPE.
We're not trying to clear stalls on control endpoints.
Matt
On Fri, Oct 04, 2002 at 12:50:19PM -0700, David Brownell wrote:
> Matthew Dharm wrote:
> > Hrm...
> >
> > Well, I can try this as an experiment... just assume that the clear halt
> > has worked... tho the logs suggest that it didn't.
>
> I'm not sure I see what you're saying. I think the correct response
> from device+core+hcds is quite typically going to be reporting -EPIPE
> to drivers trying to clear a control halt. It indicates "there was no
> control halt" ... not "the clear didn't work".
>
> - Dave
>
> >>
> >>I think that means that some drivers, maybe even usb-storage, might need
> >>to be able to clear halts on the control pipe, if they talk to devices that
> >>are not "well designed". BUT any driver that tries should expect that most
> >>devices return protocol stalls (-EPIPE) when asked to clear halts.
> >>
> >>Matt, does this help resolve your issue?
> >>
> >>- Dave
> >>
> >>
> >
> >
>
>
--
Matthew Dharm Home: [EMAIL PROTECTED]
Maintainer, Linux USB Mass Storage Driver
What, are you one of those Microsoft-bashing Linux freaks?
-- Customer to Greg
User Friendly, 2/10/1999
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