cvs commit: src/sys/dev/usb uvisor.c

Josef Karthauser joe at FreeBSD.org
Thu Aug 14 03:44:17 PDT 2003


On Wed, Aug 13, 2003 at 05:15:24PM -0700, Josef Karthauser wrote:
> joe         2003/08/13 17:15:23 PDT
> 
>   FreeBSD src repository
> 
>   Modified files:
>     sys/dev/usb          uvisor.c 
>   Log:
>   Crank down UVISORBUFSIZE from 1024 to 64 to avoid a problem where
>   the Palm device and the USB host controller deadlock. The USB host
>   controller is expecting an early-end-of-transmission packet with 0
>   data, and the Palm doesn't send one because it's already communicated
>   the amount of data it's going to send in a header (which ucom/uvisor
>   are oblivious to). This is the problem that has been known on the
>   pilot-link lists as the "[Free]BSD USB problem", but not understood.
>   
>   Submitted by:   Nathan J. Williams <nathanw at MIT.EDU>

At long last I can now synchronise my M505. Hooray! :)

Joe
-- 
Josef Karthauser (joe at tao.org.uk)	       http://www.josef-k.net/
FreeBSD (cvs meister, admin and hacker)     http://www.uk.FreeBSD.org/
Physics Particle Theory (student)   http://www.pact.cpes.sussex.ac.uk/
================ An eclectic mix of fact and theory. =================
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