Commit 07ba9e7b authored Jan 18, 2019 by Dmitry Torokhov

Input: document meanings of KEY_SCREEN and KEY_ZOOM



It is hard to say what KEY_SCREEN and KEY_ZOOM mean, but historically DVB
folks have used them to indicate switch to full screen mode. Later, they
converged on using KEY_ZOOM to switch into full screen mode and KEY)SCREEN
to control aspect ratio (see Documentation/media/uapi/rc/rc-tables.rst).

Let's commit to these uses, and define:

- KEY_FULL_SCREEN (and make KEY_ZOOM its alias)
- KEY_ASPECT_RATIO (and make KEY_SCREEN its alias)

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

parent 738c06d0

include/uapi/linux/input-event-codes.h

+4 −2

Original line number	Diff line number	Diff line
		@@ -439,10 +439,12 @@
		#define KEY_TITLE 0x171
		#define KEY_SUBTITLE 0x172
		#define KEY_ANGLE 0x173
		#define KEY_ZOOM 0x174
		#define KEY_FULL_SCREEN 0x174 /* AC View Toggle */
		#define KEY_ZOOM KEY_FULL_SCREEN
		#define KEY_MODE 0x175
		#define KEY_KEYBOARD 0x176
		#define KEY_SCREEN 0x177
		#define KEY_ASPECT_RATIO 0x177 /* HUTRR37: Aspect */
		#define KEY_SCREEN KEY_ASPECT_RATIO
		#define KEY_PC 0x178 /* Media Select Computer */
		#define KEY_TV 0x179 /* Media Select TV */
		#define KEY_TV2 0x17a /* Media Select Cable */

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