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authorJiri Kosina <jkosina@suse.cz>2010-01-04 12:20:56 +0100
committerJiri Kosina <jkosina@suse.cz>2010-01-04 12:20:56 +0100
commitcf2f765f1896064e34c6f0f2ef896ff058dd5c06 (patch)
tree5bb51af0bfcd5f72a740dee0c8b97ae358643d05 /drivers/hid/hid-input.c
parent92688c0c3c1c9e2daf705d307e8fda1b5a180d26 (diff)
downloadop-kernel-dev-cf2f765f1896064e34c6f0f2ef896ff058dd5c06.zip
op-kernel-dev-cf2f765f1896064e34c6f0f2ef896ff058dd5c06.tar.gz
HID: handle joysticks with large number of buttons
Current HID code doesn't properly handle HID joysticks which have larger number of buttons than what fits into current range reserved for BTN_JOYSTICK. One such joystick reported to not work properly is Saitek X52 Pro Flight System. We can't extend the range to fit more buttons in, because of backwards compatibility reasons. Therefore this patch introduces a new BTN_TRIGGER_HAPPY range, and uses these to map the buttons which are over BTN_JOYSTICK limit. Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> [for the input.h part] Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-input.c')
-rw-r--r--drivers/hid/hid-input.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 5862b0f..dad7aae 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -198,7 +198,12 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
switch (field->application) {
case HID_GD_MOUSE:
case HID_GD_POINTER: code += 0x110; break;
- case HID_GD_JOYSTICK: code += 0x120; break;
+ case HID_GD_JOYSTICK:
+ if (code <= 0xf)
+ code += BTN_JOYSTICK;
+ else
+ code += BTN_TRIGGER_HAPPY;
+ break;
case HID_GD_GAMEPAD: code += 0x130; break;
default:
switch (field->physical) {
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