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authorAnssi Hannula <anssi.hannula@gmail.com>2008-04-03 22:18:10 +0200
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2008-04-03 22:18:10 +0200
commita0979923d7c34c9c60d0ee8a533f9502dcfbd42b (patch)
tree2a66e7603691d00dd17db14731ad83a42d003ecb /drivers/input/joystick
parentInput: xpad - match xbox 360 devices with interface info (diff)
downloadlinux-a0979923d7c34c9c60d0ee8a533f9502dcfbd42b.tar.xz
linux-a0979923d7c34c9c60d0ee8a533f9502dcfbd42b.zip
Input: xpad - fix dpad handling of unknown devices
For devices not specifically listed in xpad.c, xpad->dpad_mapping is initially set to MAP_DPAD_UNKNOWN. In xpad_probe() it gets changed to either MAP_DPAD_TO_BUTTONS or MAP_DPAD_TO_AXES, depending on the module parameter dpad_to_buttons. However, MAP_DPAD_UNKNOWN is defined as -1, while the field is u8. This results in actual value of 255, causing the MAP_DPAD_UNKNOWN check in xpad_probe() to fail. Fix that by defining MAP_DPAD_UNKNOWN as 2 instead. Also, setting module parameter dpad_to_buttons to 1 should obviously map dpad to buttons, while the default behaviour (0) should be to map dpad to axes. However, dpad_to_buttons is directly assigned to xpad->dpad_mapping, and as MAP_DPAD_TO_BUTTONS is 0, the actual behaviour is reversed. Fix that by negating dpad_to_buttons in assignment. Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/joystick')
-rw-r--r--drivers/input/joystick/xpad.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 8804ad30dae2..6288c4f6e3a3 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -87,7 +87,7 @@
but we map them to axes when possible to simplify things */
#define MAP_DPAD_TO_BUTTONS 0
#define MAP_DPAD_TO_AXES 1
-#define MAP_DPAD_UNKNOWN -1
+#define MAP_DPAD_UNKNOWN 2
#define XTYPE_XBOX 0
#define XTYPE_XBOX360 1
@@ -653,7 +653,7 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
xpad->dpad_mapping = xpad_device[i].dpad_mapping;
xpad->xtype = xpad_device[i].xtype;
if (xpad->dpad_mapping == MAP_DPAD_UNKNOWN)
- xpad->dpad_mapping = dpad_to_buttons;
+ xpad->dpad_mapping = !dpad_to_buttons;
if (xpad->xtype == XTYPE_UNKNOWN)
xpad->xtype = (intf->cur_altsetting->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC);
xpad->dev = input_dev;