linux-kernel - Re: input question: ambient light sensor button

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Message-Id: <201311221213.49580@pali>
Date:	Fri, 22 Nov 2013 12:13:49 +0100
From:	Pali Rohár <pali.rohar@...il.com>
To:	Benjamin Tissoires <benjamin.tissoires@...il.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	Jiri Kosina <jkosina@...e.cz>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-input" <linux-input@...r.kernel.org>
Subject: Re: input question: ambient light sensor button

On Wednesday 20 November 2013 16:59:42 Benjamin Tissoires wrote:
> Hi,
> 
> On Wed, Nov 20, 2013 at 9:50 AM, Pali Rohár <pali.rohar@...il.com> wrote:
> >> > > I guess we need patch adding
> >> > > 
> >> > >   #define KEY_ALS_TOGGLE  0x230
> >> > > 
> >> > > Thanks.
> >> > 
> >> > So there is no good key for als yet?
> >> 
> >> No, but if you send me a patch adding it I will gladly
> >> apply it.
> >> 
> >> Thanks.
> > 
> > Ok, here is patch:
> > 
> > Add key code for ambient light sensor button
> > 
> > More notebooks have special button for enabling/disabling
> > ambient light sensor. This patch adding new als code to
> > input.h header file.
> > 
> > Signed-off-by: Pali Rohár <pali.rohar@...il.com>
> > 
> > diff --git a/include/uapi/linux/input.h
> > b/include/uapi/linux/input.h index a372627..1562f10 100644
> > --- a/include/uapi/linux/input.h
> > +++ b/include/uapi/linux/input.h
> > @@ -719,6 +719,8 @@ struct input_keymap_entry {
> > 
> >  #define BTN_DPAD_LEFT          0x222
> >  #define BTN_DPAD_RIGHT         0x223
> > 
> > +#define KEY_ALS_TOGGLE         0x230
> 
> Could you just add a comment explaining that ALS is ambiant
> light sensor? Otherwise, I'm sure someone else will use this
> event code for an other thing... :)
> 
> Cheers,
> Benjamin

Ok, here is new diff with comment:

diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
index a372627..7bacdb5 100644
--- a/include/uapi/linux/input.h
+++ b/include/uapi/linux/input.h
@@ -719,6 +719,8 @@ struct input_keymap_entry {
 #define BTN_DPAD_LEFT		0x222
 #define BTN_DPAD_RIGHT		0x223
 
+#define KEY_ALS_TOGGLE		0x230	/* Ambient light sensor */
+
 #define BTN_TRIGGER_HAPPY		0x2c0
 #define BTN_TRIGGER_HAPPY1		0x2c0
 #define BTN_TRIGGER_HAPPY2		0x2c1


-- 
Pali Rohár
pali.rohar@...il.com

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