USB HID: add support for dynamically-created quirks

Add internal support for dynamically-allocated HID quirks, "dquirks"
(for "dynamic quirks").  Includes several functions to add/modify quirks
from the list.  This code is used by the next patch to implement quirk
modification upon module load.

Signed-off-by: Paul Walmsley <paul@booyaka.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/hid.h b/include/linux/hid.h
index 23e0dcf8ec41..4ba456d71f6b 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -496,6 +496,7 @@ void hid_free_device(struct hid_device *device);
 struct hid_device *hid_parse_report(__u8 *start, unsigned size);
 
 u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct);
+int usbhid_modify_dquirk(const u16 idVendor, const u16 idProduct, const u32 quirks);
 
 #ifdef CONFIG_HID_FF
 int hid_ff_init(struct hid_device *hid);