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authorFrank Praznik <frank.praznik@oh.rr.com>2014-01-22 13:49:43 -0500
committerJiri Kosina <jkosina@suse.cz>2014-01-29 14:23:42 +0100
commit596cfdd80ab8ad11c750511da2c8c9a33f188ba0 (patch)
tree7266007b518015bee998d610cec35087cfee9f4b /drivers/hid
parent975a683271e690e7e467b274f22efadf1e696b5e (diff)
HID: Add the transport-driver function to the uhid driver
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>
Diffstat (limited to 'drivers/hid')
-rw-r--r--drivers/hid/uhid.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
index cedc6da93c19..f5a2b1931143 100644
--- a/drivers/hid/uhid.c
+++ b/drivers/hid/uhid.c
@@ -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

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