diff options
| author | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2016-02-12 17:10:37 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-04-12 09:08:48 -0700 |
| commit | b2fb06096e2538e131bd9551eb5a70ba42c1b3f7 (patch) | |
| tree | 6a55bf3711609830aef665b501b18a06766ff7ff /drivers/hid | |
| parent | cca86656508d12f998e11ee7f71b8a40864af3b4 (diff) | |
HID: fix hid_ignore_special_drivers module parameter
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@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-core.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index f16155f5b6e2..ec791e169f8f 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -2616,9 +2616,10 @@ int hid_add_device(struct hid_device *hdev) /* * 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); |