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Commit 4c3e8298 authored by Frank Praznik's avatar Frank Praznik Committed by Jiri Kosina
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HID: sony: Correct a typo in a HID descriptor comment and explain the odd Sixaxis axis mapping 



Correct a spelling mistake in the Sixaxis HID descriptor comment.

Add an explanation as to why the Sixaxis has so many analog axes and why
some of them are seen as multi-touch axes.

Signed-off-by: default avatarFrank Praznik <frank.praznik@oh.rr.com>
Acked-by: default avatarPavel Machek <pavel@ucw.cz>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent 221399b3

drivers/hid/hid-sony.c

+8 −1
Original line number Diff line number Diff line
@@ -59,9 +59,16 @@ 


#define MAX_LEDS 4



/*

 * The Sixaxis reports both digital and analog values for each button on the

 * controller except for Start, Select and the PS button.  The controller ends

 * up reporting 27 axes which causes them to spill over into the multi-touch

 * axis values.  Additionally, the controller only has 20 actual, physical axes

 * so there are several unused axes in between the used ones.

 */

static __u8 sixaxis_rdesc[] = {

	0x05, 0x01,         /*  Usage Page (Desktop),               */

	0x09, 0x04,         /*  Usage (Joystik),                    */

	0x09, 0x04,         /*  Usage (Joystick),                   */

	0xA1, 0x01,         /*  Collection (Application),           */

	0xA1, 0x02,         /*      Collection (Logical),           */

	0x85, 0x01,         /*          Report ID (1),              */