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-rw-r--r--include/motion_sense.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/motion_sense.h b/include/motion_sense.h
index 65512c733b..9e55a2f255 100644
--- a/include/motion_sense.h
+++ b/include/motion_sense.h
@@ -115,6 +115,7 @@ struct motion_sensor_t {
enum motionsensor_type type;
enum motionsensor_location location;
const struct accelgyro_drv *drv;
+ /* One mutex per physical chip. */
struct mutex *mutex;
void *drv_data;