Question about pipes and ugen

[Julian Elischer]

M. Warner Losh wrote:

>In message: <41B0C118.8070001 at elischer.org>
>            Julian Elischer <julian at elischer.org> writes:
>: I didn't say stack.. I said libusb (excepty I spelled it usblib)
>
>OK.  I got confused...
>
>: it recovers on several machines where FreeBSD looses communications with 
>: the target after an error.
>
>Hmmmm.  Actually, FreeBSD does do the ClearFeature(Halt) on opening of
>pipes by the driver (which ugen does each time the pipe subdevice is
>opened).  ClearFeature(Stall) was unfortunately typed from memory
>rather than looking at the standard (section 9.4.5).  What were you
>thinking about changing in this area?
>

BTW it does the halt too late.. by that time it has already tried to do 
other opertations that
have probably timed out (at least on the stupid device I have) so it's 
aborted before it ever gets
to the ClearFeature(Halt).

>
>Warner
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