Commit 94af1220 authored by Sarah Sharp's avatar Sarah Sharp Committed by Greg Kroah-Hartman

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: default avatarSarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 22ad1e7f
...@@ -1196,6 +1196,7 @@ struct urb { ...@@ -1196,6 +1196,7 @@ struct urb {
struct usb_device *dev; /* (in) pointer to associated device */ struct usb_device *dev; /* (in) pointer to associated device */
struct usb_host_endpoint *ep; /* (internal) pointer to endpoint */ struct usb_host_endpoint *ep; /* (internal) pointer to endpoint */
unsigned int pipe; /* (in) pipe information */ unsigned int pipe; /* (in) pipe information */
unsigned int stream_id; /* (in) stream ID */
int status; /* (return) non-ISO status */ int status; /* (return) non-ISO status */
unsigned int transfer_flags; /* (in) URB_SHORT_NOT_OK | ...*/ unsigned int transfer_flags; /* (in) URB_SHORT_NOT_OK | ...*/
void *transfer_buffer; /* (in) associated data buffer */ void *transfer_buffer; /* (in) associated data buffer */
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment