tree b19a971f4fefffb8dd3201e792f133ad915e6170
parent 9424d4e7c67d9d0cbc50fc8a1d00db31772c37c5
author Gerd Hoffmann <kraxel@redhat.com> 1330690949 +0100
committer Gerd Hoffmann <kraxel@redhat.com> 1331119685 +0100

usb: add shortcut for control transfers

Add a more direct code path to submit control transfers.  Instead of
feeding three usb packets (setup, data, ack) to usb_handle_packet and
have the do_token_* functions in usb.c poke the control transfer
parameters out of it just submit a single packet carrying the actual
data with the control xfer parameters filled into USBPacket->parameters.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>