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HID: Implement horizontal wheel handling for A4 Tech X5-005D

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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>
This commit is contained in:
Pavel Troller
2007-10-29 11:13:46 +01:00
committed by Jiri Kosina
parent a45d82d19a
commit c80e5ffac0
3 changed files with 22 additions and 3 deletions
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include/linux/hid.h
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@ -281,6 +281,7 @@ struct hid_item {
#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 @@ struct hid_device { /* device report descriptor */
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 *);