Commit 9578f41a authored Sep 30, 2014 by Benjamin Tissoires Committed by Jiri Kosina Oct 29, 2014

HID: core: do not scan reports if the group is already set



This allows the transport layer (I have in mind hid-logitech-dj and uhid)
to set the group before it is added to the hid bus. This way, it can
bypass the hid_scan_report() call, and choose in advance which driver
will handle the newly created hid device.

Signed-off-by: Benjamin Tisssoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

parent c241c5ee

drivers/hid/hid-core.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -2535,7 +2535,8 @@ int hid_add_device(struct hid_device *hdev)
		* Scan generic devices for group information
		*/
		if (hid_ignore_special_drivers \|\|
		!hid_match_id(hdev, hid_have_special_driver)) {
		(!hdev->group &&
		!hid_match_id(hdev, hid_have_special_driver))) {
		ret = hid_scan_report(hdev);
		if (ret)
		hid_warn(hdev, "bad device descriptor (%d)\n", ret);