diff --git a/include/uapi/linux/rkcif-config.h b/include/uapi/linux/rkcif-config.h
index 56540e6314d2..08b79886e0bd 100644
--- a/include/uapi/linux/rkcif-config.h
+++ b/include/uapi/linux/rkcif-config.h
@@ -31,6 +31,9 @@
 #define RKCIF_CMD_SET_RESET \
 	_IOW('V', BASE_VIDIOC_PRIVATE + 6, int)
 
+#define RKCIF_CMD_SET_CSI_IDX \
+	_IOW('V', BASE_VIDIOC_PRIVATE + 7, unsigned int)
+
 /* cif memory mode
  * 0: raw12/raw10/raw8 8bit memory compact
  * 1: raw12/raw10 16bit memory one pixel