From ec4b7dea453e0f9fd0fbf1761b2d01eff64f264b Mon Sep 17 00:00:00 2001 From: David Herrmann Date: Sun, 10 Jun 2012 15:16:21 +0200 Subject: [PATCH] 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 Signed-off-by: Jiri Kosina --- drivers/hid/uhid.c | 8 +++++++- include/linux/uhid.h | 2 ++ 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c index 0d011db30a46..2e7f3a023975 100644 --- a/drivers/hid/uhid.c +++ b/drivers/hid/uhid.c @@ -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) diff --git a/include/linux/uhid.h b/include/linux/uhid.h index 6eb42bea86a2..f8ce6f7571d8 100644 --- a/include/linux/uhid.h +++ b/include/linux/uhid.h @@ -25,6 +25,8 @@ enum uhid_event_type { UHID_CREATE, UHID_DESTROY, + UHID_START, + UHID_STOP, UHID_INPUT, };