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authorHenrik Rydberg <rydberg@thabit.(none)>2010-08-24 10:54:44 +0200
committerJiri Kosina <jkosina@suse.cz>2010-09-21 16:11:44 +0200
commit24750f3e469bef81a96c0036cd4700df5fb48925 (patch)
tree83277d19622844e56c97c498b5c305cd77d93d39
parent9c03f1622af051004416dd3e24d8a0fa31e34178 (diff)
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>
-rw-r--r--drivers/hid/hid-input.c3
-rw-r--r--include/linux/hid.h1
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 6c03dcc5760a..b186f6d0feba 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -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);
}
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 42a0f1d11365..4cfe02c3fa4e 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -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