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HID: Add a hid quirk for input sync override 

As of lately, HID devices which send per-frame data split over several
HID reports have started to emerge. This patch adds a quirk which
allows the HID driver to take over the input layer synchronization,
and hence the control of the frame boundary.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
hifive-unleashed-5.1
Henrik Rydberg 2010-08-24 10:54:44 +02:00 committed by Jiri Kosina
parent 9c03f1622a
commit 24750f3e46
2 changed files with 4 additions and 0 deletions
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3
drivers/hid/hid-input.c
View File

@ -659,6 +659,9 @@ void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
{
struct hid_input *hidinput;
if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC)
return;
list_for_each_entry(hidinput, &hid->inputs, list)
input_sync(hidinput->input);
}

1
include/linux/hid.h
View File

@ -316,6 +316,7 @@ struct hid_item {
#define HID_QUIRK_FULLSPEED_INTERVAL 0x10000000
#define HID_QUIRK_NO_INIT_REPORTS 0x20000000
#define HID_QUIRK_NO_IGNORE 0x40000000
#define HID_QUIRK_NO_INPUT_SYNC 0x80000000
/*
* This is the global environment of the parser. This information is