testcases/kernel/device-drivers/v4l/user_space/video_limits.h

/*
 * v4l-test: Test environment for Video For Linux Two API
 *
 * 18 Dec 2008  0.1  First release
 *
 * Written by Márton Németh <nm127@freemail.hu>
 * Released under GPL
 */

#define S32_MAX		0x7FFFFFFF
#define U32_MAX		0xFFFFFFFFU