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Message-Id: <1446409571-15146-1-git-send-email-clement.calmels@free.fr> Date: Sun, 1 Nov 2015 21:26:11 +0100 From: clement.calmels@...e.fr To: Dmitry Torokhov <dmitry.torokhov@...il.com>, linux-input@...r.kernel.org, linux-kernel@...r.kernel.org Cc: Clement Calmels <clement.calmels@...e.fr> Subject: [PATCH] Input: xpad - remove spurious events of wireless xpad 360 controller From: Clement Calmels <clement.calmels@...e.fr> When powering up a wireless xbox 360 controller, some wrong joystick events are generated. It is annoying because, for example, it makes unwanted moves in Steam big picture mode's menu. When my controller connects, this packet is received by the driver: 00000000: 00 0f 00 f0 00 cc ff cf 8b e0 86 6a 68 f0 00 20 ...........jh.. 00000010: 13 e3 20 1d 30 03 40 01 50 01 ff ff .. .0.@..... According to xboxdrv: https://github.com/xboxdrv/xboxdrv/blob/stable/src/xbox360_wireless_controller.cpp#L118 this packet is only dumping a serial id and should not be interpreted as joystick events. This issue can be easily seen with: $ jstest --event /dev/input/js0 This patch only adds a way to filter out this "serial" packet and as a result it removes the spurous events. Signed-off-by: Clement Calmels <clement.calmels@...e.fr> --- drivers/input/joystick/xpad.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c index f8850f9..68e5bd3 100644 --- a/drivers/input/joystick/xpad.c +++ b/drivers/input/joystick/xpad.c @@ -523,7 +523,7 @@ static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned cha } /* Valid pad data */ - if (!(data[1] & 0x1)) + if (!(data[1] & 0x1) || data[1] == 0xf) return; xpad360_process_packet(xpad, cmd, &data[4]); -- 2.6.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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