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HID: Add the transport-driver function to the uhid driver

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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>
This commit is contained in:
Frank Praznik 2014-01-22 13:49:43 -05:00 committed by Jiri Kosina
parent 975a683271
commit 596cfdd80a
1 changed files with 27 additions and 0 deletions
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27
drivers/hid/uhid.c
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@ -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