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HID: input: don't register unmapped input devices

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There is no need to register an input device containing no events.
This allows drivers using the quirk MULTI_INPUT to register one input
per report effectively used.

For backward compatibility, we need to add a quirk to request
this behavior.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Benjamin Tissoires 2013-03-22 18:38:28 +01:00 • committed by Jiri Kosina
parent b3fecf8cab
commit 4f22decf9b
2 changed files with 78 additions and 0 deletions
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1
include/linux/hid.h
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@ -282,6 +282,7 @@ struct hid_item {
#define HID_QUIRK_BADPAD 0x00000020
#define HID_QUIRK_MULTI_INPUT 0x00000040
#define HID_QUIRK_HIDINPUT_FORCE 0x00000080
#define HID_QUIRK_NO_EMPTY_INPUT 0x00000100
#define HID_QUIRK_SKIP_OUTPUT_REPORTS 0x00010000
#define HID_QUIRK_FULLSPEED_INTERVAL 0x10000000
#define HID_QUIRK_NO_INIT_REPORTS 0x20000000