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HID: multitouch: Add support for button type usage

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According to [1], Windows Precision Touchpad devices must supply
a button type usage in the device capabilities feature report. A
value of 0 indicates that the device contains a depressible
button (i.e. it's a click-pad) whereas a value of 1 indicates
a non-depressible button. Add support for this usage and set
INPUT_PROP_BUTTONPAD on the touchpad input device whenever a
depressible button is present.

[1] https://msdn.microsoft.com/en-us/library/windows/hardware/dn467314(v=vs.85).aspx

Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Seth Forshee 2015-03-11 17:26:41 -05:00 • committed by Jiri Kosina
parent 015fdaa9f8
commit 2c6e0277e1
3 changed files with 18 additions and 0 deletions
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1
include/linux/hid.h
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@ -269,6 +269,7 @@ struct hid_item {
#define HID_DG_DEVICEINDEX 0x000d0053
#define HID_DG_CONTACTCOUNT 0x000d0054
#define HID_DG_CONTACTMAX 0x000d0055
#define HID_DG_BUTTONTYPE 0x000d0059
#define HID_DG_BARRELSWITCH2 0x000d005a
#define HID_DG_TOOLSERIALNUMBER 0x000d005b