HID: uhid: add UHID_START and UHID_STOP events
We send UHID_START and UHID_STOP events to user-space when the HID core
starts/stops the device. This notifies user-space about driver readiness
and data-I/O can start now.
This directly forwards the callbacks from hid-core to user-space.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
index 0d011db..2e7f3a0 100644
--- a/drivers/hid/uhid.c
+++ b/drivers/hid/uhid.c
@@ -82,11 +82,17 @@
static int uhid_hid_start(struct hid_device *hid)
{
- return 0;
+ struct uhid_device *uhid = hid->driver_data;
+
+ return uhid_queue_event(uhid, UHID_START);
}
static void uhid_hid_stop(struct hid_device *hid)
{
+ struct uhid_device *uhid = hid->driver_data;
+
+ hid->claimed = 0;
+ uhid_queue_event(uhid, UHID_STOP);
}
static int uhid_hid_open(struct hid_device *hid)