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

[Hans Petter Selasky]

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