From bca621421c53caf73f36e181d6e5fe41fe0da7a7 Mon Sep 17 00:00:00 2001 From: Daniel van Vugt Date: Fri, 14 Oct 2011 13:39:34 +0800 Subject: [PATCH] HID: hid-magicmouse: Magic Trackpad has 1 button, not 2 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 makes Xorg 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 Reviewed-by: Chase Douglas Signed-off-by: Jiri Kosina --- drivers/hid/hid-magicmouse.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c index f0fbd7bd239e..2ab71758e2e2 100644 --- a/drivers/hid/hid-magicmouse.c +++ b/drivers/hid/hid-magicmouse.c @@ -405,6 +405,13 @@ 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 */ + /* input->keybit is initialized with incorrect button info + * for Magic Trackpad. There really is only one physical + * button (BTN_LEFT == BTN_MOUSE). Make sure we don't + * advertise buttons that don't exist... + */ + __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); -- 2.20.1