diff options
author | Alan Stern <stern@rowland.harvard.edu> | 2007-07-30 17:06:16 -0400 |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-10-12 14:55:00 -0700 |
commit | fea3409112a93581db18da4c4332c8bf8d68af6b (patch) | |
tree | c89b9fd9f8a64d2419d7888a6ab135851f4fee38 /drivers/edac | |
parent | bdd016ba64d909329cb4bacacc8443901c00e112 (diff) |
USB: add direction bit to urb->transfer_flags
This patch (as945) adds a bit to urb->transfer_flags for recording the
direction of the URB. The bit is set/cleared automatically in
usb_submit_urb() so drivers don't have to worry about it (although as
a result, it isn't valid until the URB has been submitted). Inline
routines are added for easily checking an URB's direction. They
replace calls to usb_pipein in the DMA-mapping parts of hcd.c.
For non-control endpoints, the direction is determined directly from
the endpoint descriptor. However control endpoints are
bi-directional; for them the direction is determined from the
bRequestType byte and the wLength value in the setup packet.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/edac')
0 files changed, 0 insertions, 0 deletions