Input: add KEY_LOGOFF

HUT 1.12 defines Logoff usage 0x19c in Consumer page. There are
keyboards out there emitting this usage code (for example Microsoft
Wireless Laser Keyboard 6000). Add this key so that HID code could
map usages to it.

Signed-off-by: Khelben Blackstaff <eye.of.the.8eholder@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/hid-debug.c

@@ -698,6 +698,7 @@ static const char *keys[KEY_MAX + 1] = {
 	[KEY_SEND] = "Send",			[KEY_REPLY] = "Reply",
 	[KEY_FORWARDMAIL] = "ForwardMail",	[KEY_SAVE] = "Save",
 	[KEY_DOCUMENTS] = "Documents",		[KEY_SPELLCHECK] = "SpellCheck",
+	[KEY_LOGOFF] = "Logoff",
 	[KEY_FN] = "Fn",			[KEY_FN_ESC] = "Fn+ESC",
 	[KEY_FN_1] = "Fn+1",			[KEY_FN_2] = "Fn+2",
 	[KEY_FN_B] = "Fn+B",			[KEY_FN_D] = "Fn+D",

include/linux/input.h

@@ -524,6 +524,7 @@ struct input_absinfo {
 #define KEY_MESSENGER		0x1ae	/* AL Instant Messaging */
 #define KEY_DISPLAYTOGGLE	0x1af	/* Turn display (LCD) on and off */
 #define KEY_SPELLCHECK		0x1b0   /* AL Spell Check */
+#define KEY_LOGOFF		0x1b1   /* AL Logoff */
 
 #define KEY_DEL_EOL		0x1c0
 #define KEY_DEL_EOS		0x1c1