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-rw-r--r--include/linux/hid.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 6fb743d72bfe..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
@@ -476,6 +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;