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authorSarah Sharp <sarah.a.sharp@linux.intel.com>2010-04-03 02:34:10 +0400
committerGreg Kroah-Hartman <gregkh@suse.de>2010-05-21 00:21:37 +0400
commit94af1220985c71cd80d6c161b7a42c51ef08b923 (patch)
tree0256344a21dd26880146a9cad88c3ec19182d155 /include/linux/usb.h
parent22ad1e7f86e1fb96488d71512e2797153a6ad839 (diff)
downloadlinux-94af1220985c71cd80d6c161b7a42c51ef08b923.tar.xz
USB: Add stream ID field to struct urb.
Bulk endpoint streams were added in the USB 3.0 specification. Streams allow a device driver to overload a bulk endpoint so that multiple transfers can be queued at once. Add a new field, stream_id, to struct urb so that USB 3.0 drivers can specify which stream they want the URB to be queued to. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/usb.h')
-rw-r--r--include/linux/usb.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h
index e32a849f81ce..191af498c4f5 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1196,6 +1196,7 @@ struct urb {
struct usb_device *dev; /* (in) pointer to associated device */
struct usb_host_endpoint *ep; /* (internal) pointer to endpoint */
unsigned int pipe; /* (in) pipe information */
+ unsigned int stream_id; /* (in) stream ID */
int status; /* (return) non-ISO status */
unsigned int transfer_flags; /* (in) URB_SHORT_NOT_OK | ...*/
void *transfer_buffer; /* (in) associated data buffer */