tree 94ffabba4678d9e9bdcd77564043735a7fd96edb
parent f3b0cbce01cd5c242b420d986b208d306bdc5083
author Benjamin Tissoires <benjamin.tissoires@redhat.com> 1396286830 -0400
committer Jiri Kosina <jkosina@suse.cz> 1396857325 +0200

HID: core: do not scan constant input report

The Microsoft Surface Type/Touch Cover 2 is a fancy device which advertised
itself as a multitouch device but with constant input reports.
This way, hid_scan_report() gives the group MULTITOUCH to it, but
hid-multitouch can not handle it due to the constant collection ignored
by hid-input.

To prevent such crap in the future, and while we do not fix this particular
device, make the scan_report coherent with hid-input.c, and ignore constant
input reports.

CC: stable@vger.kernel.org # 3.12+
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>