linux-kernel - [PATCH] input: extend EV

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Message-ID: <45CEE9AB.2020208@freemail.hu>
Date:	Sun, 11 Feb 2007 11:02:19 +0100
From:	Németh Márton <nm127@...email.hu>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
CC:	linux-input@...ey.karlin.mff.cuni.cz, linux-kernel@...r.kernel.org
Subject: [PATCH] input: extend EV_LED


Extend EV_LED handling code so that it can handle not
only two states (on/off) but also others. For example
a LED can blink using hardware acceleration. The code
changed so that it is similar to the code at EV_SND.

Signed-off-by: Márton Németh <nm127@...email.hu>

---
diff -uprN linux-2.6.20.orig/drivers/input/input.c 
linux/drivers/input/input.c
--- linux-2.6.20.orig/drivers/input/input.c	2007-02-04 
19:44:54.000000000 +0100
+++ linux/drivers/input/input.c	2007-02-10 15:20:28.000000000 +0100
@@ -141,10 +141,11 @@ void input_event(struct input_dev *dev,

  		case EV_LED:

-			if (code > LED_MAX || !test_bit(code, dev->ledbit) || 
!!test_bit(code, dev->led) == value)
+			if (code > LED_MAX || !test_bit(code, dev->ledbit))
  				return;

-			change_bit(code, dev->led);
+			if (!!test_bit(code, dev->led) != !!value)
+				change_bit(code, dev->led);

  			if (dev->event)
  				dev->event(dev, type, code, value);
-
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