usb/144199: uvisor(4) - AlphaSmart Dana incorrect stall clearing

[Hans Petter Selasky]

The following reply was made to PR usb/144199; it has been noted by GNATS.

From: Hans Petter Selasky <hselasky at c2i.net>
To: freebsd-usb at freebsd.org
Cc: Stephen Hurd <shurd at sasktel.net>,
 freebsd-gnats-submit at freebsd.org
Subject: Re: usb/144199: uvisor(4) - AlphaSmart Dana incorrect stall clearing
Date: Mon, 22 Feb 2010 09:47:55 +0100

 On Monday 22 February 2010 08:25:34 Stephen Hurd wrote:
 > usb/144199
 > 
         USB serial:
 
                 - bugfix for uvisor driver
 
                 - it appears that some UVISOR devices do not
                   handle when the clear stall command is issued at
                   the beginning of the initial IN/OUT data transfers.
                   Reason unknown, probably firmware fault. After patch
                   stall is only cleared on data transfer errors.
 
 Committed to USB P4, ID=174962 .
 
 --HPS