This is a note to let you know that I've just added the patch titled HID: fix hid_ignore_special_drivers module parameter to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: hid-fix-hid_ignore_special_drivers-module-parameter.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 4392bf333388cabdad5afe5b1500002d7b9c318e Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx> Date: Fri, 12 Feb 2016 17:10:37 +0100 Subject: HID: fix hid_ignore_special_drivers module parameter From: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx> commit 4392bf333388cabdad5afe5b1500002d7b9c318e upstream. hid_ignore_special_drivers works fine until hid_scan_report autodetects and reassign devices (for hid-multitouch, hid-microsoft and hid-rmi). Simplify the handling of the parameter: if it is there, use hid-generic, no matter what, and if not, scan the device or rely on the hid_have_special_driver table. This was detected while trying to disable hid-multitouch on a Surface Pro cover which prevented to use the keyboard. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx> Signed-off-by: Jiri Kosina <jkosina@xxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/hid/hid-core.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -2616,9 +2616,10 @@ int hid_add_device(struct hid_device *hd /* * Scan generic devices for group information */ - if (hid_ignore_special_drivers || - (!hdev->group && - !hid_match_id(hdev, hid_have_special_driver))) { + if (hid_ignore_special_drivers) { + hdev->group = HID_GROUP_GENERIC; + } else if (!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); Patches currently in stable-queue which might be from benjamin.tissoires@xxxxxxxxxx are queue-4.4/hid-multitouch-force-retrieving-of-win8-signature-blob.patch queue-4.4/hid-fix-hid_ignore_special_drivers-module-parameter.patch queue-4.4/hid-i2c-hid-fix-oob-write-in-i2c_hid_set_or_send_report.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html