From: Chase Douglas Date: Mon, 30 Aug 2010 17:27:45 +0000 (-0400) Subject: HID: debugfs: wake up reading tasks upon event X-Git-Tag: v2.6.37-rc1~144^2~4^2~8 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=1debfb3315d95ab5ce328e307bd115b4400685fb;p=karo-tx-linux.git HID: debugfs: wake up reading tasks upon event Some devices poke the hid core in a way that causes hid_debug_event to be called, while never calling hid_dump_input. Without this wakeup addition, tasks reading for hid events through debugfs may never see any events. It may be that a well written driver doesn't cause this, but then what's the point of debugfs? Signed-off-by: Chase Douglas Signed-off-by: Jiri Kosina --- diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c index 850d02a7a925..adff4efdc169 100644 --- a/drivers/hid/hid-debug.c +++ b/drivers/hid/hid-debug.c @@ -570,6 +570,8 @@ void hid_debug_event(struct hid_device *hdev, char *buf) buf[i]; list->tail = (list->tail + i) % HID_DEBUG_BUFSIZE; } + + wake_up_interruptible(&hdev->debug_wait); } EXPORT_SYMBOL_GPL(hid_debug_event);