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CVS commit: src/sys/dev/usb

Module Name:    src
Committed By:   skrll
Date:           Sat Sep  7 16:17:12 UTC 2013

Modified Files:
        src/sys/dev/usb: uhci.c

Log Message:
Deal with control transfers better by

        - removing the UHCI_PTR_VF flag for the setup and status stages
          which means they are scheduled less aggressively.  Some devices
          appear to require this (blymn@ has one).  The flag was
          introduced as a performance improvement for bulk transfers.

        - Checking for short reads and making sure the status stage runs
          if they're encountered.

PR/47522 Enumeration of LUFA/Atmel devices on UHCI fails

Thanks to jak@ and blymn@ for testing and mlelstv@ for comments.

To generate a diff of this commit:
cvs rdiff -u -r1.257 -r1.258 src/sys/dev/usb/uhci.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

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