HID: Implement horizontal wheel handling for A4 Tech X5-005D
This mouse distinguishes horizontal wheel from vertical by a special "pseudo
event" GenericDesktop.00b8, with values of 0 for vertical and 8 for horizontal
wheel. Because this event is supplied by the parser too late, we need to delay
a wheel event, wait for this one and send either REL_WHEEL or REL_HWHEEL to
input depending on the event value.
Signed-off-by: Pavel Troller <patrol@sinus.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 833f2af..991bbcd 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -281,6 +281,7 @@
#define HID_QUIRK_LOGITECH_IGNORE_DOUBLED_WHEEL 0x00400000
#define HID_QUIRK_LOGITECH_EXPANDED_KEYMAP 0x00800000
#define HID_QUIRK_IGNORE_HIDINPUT 0x01000000
+#define HID_QUIRK_2WHEEL_MOUSE_HACK_B8 0x02000000
/*
* Separate quirks for runtime report descriptor fixup
@@ -456,6 +457,8 @@
void *driver_data;
+ __s32 delayed_value; /* For A4 Tech mice hwheel quirk */
+
/* device-specific function pointers */
int (*hidinput_input_event) (struct input_dev *, unsigned int, unsigned int, int);
int (*hid_open) (struct hid_device *);