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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2009-12-12 08:54:54 +0100
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2009-12-12 08:55:23 +0100
commit7105d2ea73e1391b681d0e1212c42f561c64d429 (patch)
tree5174ea539fe6ac731242c26a5cb95715898b2b2e /drivers
parentInput: document use of input_event() function (diff)
downloadlinux-7105d2ea73e1391b681d0e1212c42f561c64d429.tar.xz
linux-7105d2ea73e1391b681d0e1212c42f561c64d429.zip
Input: ALPS - do not set REL_X/REL_Y capabilities on the touchpad
Relative events are only reported via secondary device therefore device associated with the touchpad should not advertise these capabilities. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/input/mouse/alps.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index a3f492a50850..b03e7e0b4099 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -487,6 +487,17 @@ int alps_init(struct psmouse *psmouse)
if (alps_hw_init(psmouse))
goto init_fail;
+ /*
+ * Undo part of setup done for us by psmouse core since touchpad
+ * is not a relative device.
+ */
+ __clear_bit(EV_REL, dev1->evbit);
+ __clear_bit(REL_X, dev1->relbit);
+ __clear_bit(REL_Y, dev1->relbit);
+
+ /*
+ * Now set up our capabilities.
+ */
dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY);
dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH);
dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER);