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Commit ec4b7dea authored by David Herrmann's avatar David Herrmann Committed by Jiri Kosina
Browse files

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: default avatarDavid Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent 037c061b

drivers/hid/uhid.c

+7 −1
Original line number Original line Diff line number Diff line
@@ -82,11 +82,17 @@ static int uhid_queue_event(struct uhid_device *uhid, __u32 event) 




static int uhid_hid_start(struct hid_device *hid)

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)

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)

static int uhid_hid_open(struct hid_device *hid)

include/linux/uhid.h

+2 −0
Original line number Original line Diff line number Diff line
@@ -25,6 +25,8 @@ 
enum uhid_event_type {

enum uhid_event_type {

	UHID_CREATE,

	UHID_CREATE,

	UHID_DESTROY,

	UHID_DESTROY,

	UHID_START,

	UHID_STOP,

	UHID_INPUT,

	UHID_INPUT,

};

};