X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fmedia%2Fv4l2-device.h;h=c9b1593923f6ef01a3cd069a8f1fdb1a74f178e4;hb=c810fcb930d9c705774427bb6eb551b2e1108adb;hp=d61febfb1668549caa6b5610af09e3144aa3226e;hpb=bc9bc72e2f9bb07384c00604d1a40d0b5f62be6c;p=firefly-linux-kernel-4.4.55.git

diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h
index d61febfb1668..c9b1593923f6 100644
--- a/include/media/v4l2-device.h
+++ b/include/media/v4l2-device.h
@@ -190,4 +190,17 @@ v4l2_device_register_subdev_nodes(struct v4l2_device *v4l2_dev);
 			##args);					\
 })
 
+#define v4l2_device_has_op(v4l2_dev, o, f)				\
+({									\
+	struct v4l2_subdev *__sd;					\
+	bool __result = false;						\
+	list_for_each_entry(__sd, &(v4l2_dev)->subdevs, list) {		\
+		if (v4l2_subdev_has_op(__sd, o, f)) {			\
+			__result = true;				\
+			break;						\
+		}							\
+	}								\
+	__result;							\
+})
+
 #endif