Add KEY_MICMUTE and enable it on Lenovo X220

this only shutsdown warnings concerning that key,
no real effect yet.

svn path=/dists/trunk/linux-2.6/; revision=17777

debian/changelog

@@ -9,6 +9,7 @@ linux-2.6 (3.0.0~rc5-1~experimental.2) UNRELEASED; urgency=low
   * [x86_32] enable modular I2C_PXA.
   * [x86] enable modular SENSORS_FAM15H_POWER.
   * drm/i915: Hold struct_mutex during i915_save_state/i915_restore_state.
+  * [thinkpad] Add KEY_MICMUTE and enable it on Lenovo X220.
 
  -- maximilian attems <maks@debian.org>  Tue, 28 Jun 2011 12:10:21 +0200
 

debian/patches/bugfix/all/Add-KEY_MICMUTE-and-enable-it-on-Lenovo-X220.patch

@@ -0,0 +1,53 @@
+From 0198af5884040ec6ded1558f5f3d4e696898a19f Mon Sep 17 00:00:00 2001
+From: Andy Lutomirski <luto@MIT.EDU>
+Date: Tue, 24 May 2011 15:16:43 -0400
+Subject: [PATCH] Add KEY_MICMUTE and enable it on Lenovo X220
+
+I suspect that this works on T410.
+
+Signed-off-by: Andy Lutomirski <luto@mit.edu>
+Signed-off-by: Matthew Garrett <mjg@redhat.com>
+---
+ drivers/platform/x86/thinkpad_acpi.c |   11 ++++++++++-
+ include/linux/input.h                |    2 ++
+ 2 files changed, 12 insertions(+), 1 deletions(-)
+
+diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
+index 26c5b11..7bd829f 100644
+--- a/drivers/platform/x86/thinkpad_acpi.c
++++ b/drivers/platform/x86/thinkpad_acpi.c
+@@ -3186,8 +3186,17 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
+ 		KEY_VENDOR,	/* 0x17: Thinkpad/AccessIBM/Lenovo */
+ 
+ 		/* (assignments unknown, please report if found) */
++		KEY_UNKNOWN, KEY_UNKNOWN,
++
++		/*
++		 * The mic mute button only sends 0x1a.  It does not
++		 * automatically mute the mic or change the mute light.
++		 */
++		KEY_MICMUTE,	/* 0x1a: Mic mute (since ?400 or so) */
++
++		/* (assignments unknown, please report if found) */
+ 		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
+-		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
++		KEY_UNKNOWN,
+ 		},
+ 	};
+ 
+diff --git a/include/linux/input.h b/include/linux/input.h
+index 771d6d8..f26d3b7 100644
+--- a/include/linux/input.h
++++ b/include/linux/input.h
+@@ -438,6 +438,8 @@ struct input_keymap_entry {
+ #define KEY_WIMAX		246
+ #define KEY_RFKILL		247	/* Key that controls all radios */
+ 
++#define KEY_MICMUTE		248	/* Mute / unmute the microphone */
++
+ /* Code 255 is reserved for special needs of AT keyboard driver */
+ 
+ #define BTN_MISC		0x100
+-- 
+1.7.2.5
+

debian/patches/series/base

@@ -46,3 +46,4 @@
 + bugfix/ia64/nouveau-ACPI-support-is-dependent-on-X86.patch
 + features/all/rt2x00-Add-device-ID-for-RT539F-device.patch
 + bugfix/all/drm_i915_hold_struct_mutex.patch
++ bugfix/all/Add-KEY_MICMUTE-and-enable-it-on-Lenovo-X220.patch