From eb8b7bf49ccc32d335f2b934431aeb5fc24220c2 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Fri, 6 Mar 2009 17:43:12 +0100
Subject: v4l/compat.h: add clamp_val

From: Hans Verkuil <hverkuil@xs4all.nl>

Priority: normal

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
---
 v4l/compat.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'v4l/compat.h')

diff --git a/v4l/compat.h b/v4l/compat.h
index 3df844c87..16ff90bc4 100644
--- a/v4l/compat.h
+++ b/v4l/compat.h
@@ -238,6 +238,12 @@ static inline int list_is_singular(const struct list_head *head)
 				      min_t( __typeof__( x ),	\
 					     ( h ),        	\
 					     ( x ) ) )
+#define clamp_val(val, min, max) ({		\
+	typeof(val) __val = (val);		\
+	typeof(val) __min = (min);		\
+	typeof(val) __max = (max);		\
+	__val = __val < __min ? __min : __val;	\
+	__val > __max ? __max : __val; })
 #endif
 
 #ifdef NEED_ALGO_CONTROL
-- 
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