Skip to content

Commit

Permalink
HID: Add the transport-driver function to the uhid driver
Browse files Browse the repository at this point in the history
Add the uhid_output_report transport-driver function to the uhid driver.

Signed-off-by: Frank Praznik <frank.praznik@oh.rr.com>
Acked-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
  • Loading branch information
Frank Praznik authored and Jiri Kosina committed Jan 29, 2014
1 parent 975a683 commit 596cfdd
Showing 1 changed file with 27 additions and 0 deletions.
27 changes: 27 additions & 0 deletions drivers/hid/uhid.c
Original file line number Diff line number Diff line change
Expand Up @@ -244,12 +244,39 @@ static int uhid_hid_output_raw(struct hid_device *hid, __u8 *buf, size_t count,
return count;
}

static int uhid_hid_output_report(struct hid_device *hid, __u8 *buf,
size_t count)
{
struct uhid_device *uhid = hid->driver_data;
unsigned long flags;
struct uhid_event *ev;

if (count < 1 || count > UHID_DATA_MAX)
return -EINVAL;

ev = kzalloc(sizeof(*ev), GFP_KERNEL);
if (!ev)
return -ENOMEM;

ev->type = UHID_OUTPUT;
ev->u.output.size = count;
ev->u.output.rtype = UHID_OUTPUT_REPORT;
memcpy(ev->u.output.data, buf, count);

spin_lock_irqsave(&uhid->qlock, flags);
uhid_queue(uhid, ev);
spin_unlock_irqrestore(&uhid->qlock, flags);

return count;
}

static struct hid_ll_driver uhid_hid_driver = {
.start = uhid_hid_start,
.stop = uhid_hid_stop,
.open = uhid_hid_open,
.close = uhid_hid_close,
.parse = uhid_hid_parse,
.output_report = uhid_hid_output_report,
};

#ifdef CONFIG_COMPAT
Expand Down

0 comments on commit 596cfdd

Please sign in to comment.