[PATCH v1 1/1] hid-magicmouse: Magic Trackpad has 1 button, not 2

[Daniel van Vugt <vanvugt@gmail.com>]

hid-magicmouse was advertising the Apple Magic Trackpad as having 2
buttons (left and right) when it actually only has 1 button.

Advertising multiple buttons in turn makes the xorg synaptics code
disable all button 2 and 3 emulation (using multi-finger clicks). So
xorg users don't get working right/middle-click emulation out of the box.

This patch makes hid-magicmouse correctly only report one real button
for Magic Trackpad, which in turn makes xorg enable multi-finger click
support to emulate right/middle buttons.

[http://launchpad.net/bugs/862094]

Signed-off-by: Daniel van Vugt <vanvugt@gmail.com>
---
drivers/hid/hid-magicmouse.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c
index f0fbd7b..12200e6 100644
--- a/drivers/hid/hid-magicmouse.c
+++ b/drivers/hid/hid-magicmouse.c
@@ -405,6 +405,8 @@ static void magicmouse_setup_input(struct input_dev
*input, struct hid_device *h
 			__set_bit(REL_HWHEEL, input->relbit);
 		}
 	} else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
+		__clear_bit(BTN_RIGHT, input->keybit);
+		__clear_bit(BTN_MIDDLE, input->keybit);
 		__set_bit(BTN_MOUSE, input->keybit);
 		__set_bit(BTN_TOOL_FINGER, input->keybit);
 		__set_bit(BTN_TOOL_DOUBLETAP, input->keybit);