1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/hid.h b/include/linux/hid.h
index 9cf8e7ae7450..deed5f9a1e1c 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -71,6 +71,7 @@
 #include <linux/timer.h>
 #include <linux/workqueue.h>
 #include <linux/input.h>
+#include <linux/semaphore.h>
 
 /*
  * We parse each description item into this structure. Short items data
@@ -312,6 +313,7 @@ struct hid_item {
 #define HID_QUIRK_BADPAD                        0x00000020
 #define HID_QUIRK_MULTI_INPUT                   0x00000040
 #define HID_QUIRK_HIDINPUT_FORCE                0x00000080
+#define HID_QUIRK_MULTITOUCH                    0x00000100
 #define HID_QUIRK_SKIP_OUTPUT_REPORTS           0x00010000
 #define HID_QUIRK_FULLSPEED_INTERVAL            0x10000000
 #define HID_QUIRK_NO_INIT_REPORTS               0x20000000
@@ -475,6 +477,7 @@ struct hid_device {							/* device report descriptor */
         unsigned country;                                               /* HID country */
         struct hid_report_enum report_enum[HID_REPORT_TYPES];
 
+        struct semaphore driver_lock;                                   /* protects the current driver */
         struct device dev;                                              /* device */
         struct hid_driver *driver;
         struct hid_ll_driver *ll_driver;