[RFC v2 2/4] HID: uhid: Handle LED input events
From: Andre Guedes <hidden>
Date: 2012-12-01 19:07:43
Subsystem:
hid core layer, the rest, uhid userspace hid io driver · Maintainers:
Jiri Kosina, Benjamin Tissoires, Linus Torvalds, David Rheinsberg
This patch adds support for handling LED input events in uhid driver. Others input events are sent to userspace as UHID_OUTPUT_EV events. Signed-off-by: Andre Guedes <redacted> --- drivers/hid/uhid.c | 32 +++++++++++++++++++++----------- 1 file changed, 21 insertions(+), 11 deletions(-)
diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
index 714cd8c..a5cf905 100644
--- a/drivers/hid/uhid.c
+++ b/drivers/hid/uhid.c@@ -122,21 +122,31 @@ static int uhid_hid_input(struct input_dev *input, unsigned int type, struct uhid_device *uhid = hid->driver_data; unsigned long flags; struct uhid_event *ev; + int ret; - ev = kzalloc(sizeof(*ev), GFP_ATOMIC); - if (!ev) - return -ENOMEM; + switch (type) { + case EV_LED: + ret = hidinput_led_output_report(hid, code, value); + break; - ev->type = UHID_OUTPUT_EV; - ev->u.output_ev.type = type; - ev->u.output_ev.code = code; - ev->u.output_ev.value = value; + default: + ev = kzalloc(sizeof(*ev), GFP_ATOMIC); + if (!ev) + return -ENOMEM; - spin_lock_irqsave(&uhid->qlock, flags); - uhid_queue(uhid, ev); - spin_unlock_irqrestore(&uhid->qlock, flags); + ev->type = UHID_OUTPUT_EV; + ev->u.output_ev.type = type; + ev->u.output_ev.code = code; + ev->u.output_ev.value = value; - return 0; + spin_lock_irqsave(&uhid->qlock, flags); + uhid_queue(uhid, ev); + spin_unlock_irqrestore(&uhid->qlock, flags); + + ret = 0; + } + + return ret; } static int uhid_hid_parse(struct hid_device *hid)
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1.8.0.1