Messages in this thread Patch in this message | | | From | "Henrik Rydberg" <> | Subject | [PATCH] hid: Add a hid quirk for input sync override | Date | Tue, 24 Aug 2010 10:54:44 +0200 |
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From: Henrik Rydberg <rydberg@thabit.(none)>
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> --- Jiri, Dmitry, Stephane,
No doubt, this is not a final solution, but it serves the purpose of being able to make existing drivers functional while a satisfactory solution is being worked out.
Cheers, Henrik
drivers/hid/hid-input.c | 3 +++ include/linux/hid.h | 1 + 2 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index 69d152e..9d97934 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -656,6 +656,9 @@ 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); } diff --git a/include/linux/hid.h b/include/linux/hid.h index 895001f..8029883 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -315,6 +315,7 @@ 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 -- 1.7.1
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