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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>
This commit is contained in:
David Herrmann 2012-06-10 15:16:21 +02:00 committed by Jiri Kosina
parent 037c061bca
commit ec4b7dea45
2 changed files with 9 additions and 1 deletions
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8
drivers/hid/uhid.c
View File

@ -82,11 +82,17 @@ static int uhid_queue_event(struct uhid_device *uhid, __u32 event)
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)

2
include/linux/uhid.h
View File

@ -25,6 +25,8 @@
enum uhid_event_type {
UHID_CREATE,
UHID_DESTROY,
UHID_START,
UHID_STOP,
UHID_INPUT,
};