sysdep-2.4.h

来自「盛博can驱动程序功能很全」· C头文件 代码 · 共 55 行

/*
 * sysdep-2.4.h -- a trial to centralize changes between 2.2.14 and 2.4.x
 *
 */


#ifndef _SYSDEP_24_H_
#define _SYSDEP_24_H_
#endif

#ifndef LINUX_VERSION_CODE
#  include <linux/version.h>
#endif

#ifndef VERSION_CODE
#  define VERSION_CODE(vers,rel,seq) ( ((vers)<<16) | ((rel)<<8) | (seq) )
#endif

/* only allow 2.4.x and 2.4.y */

#if LINUX_VERSION_CODE < VERSION_CODE(2,2,14)
#  error "This kernel is too old: not supported by this file"
#endif

#if ((LINUX_VERSION_CODE > VERSION_CODE(2,3,0))&& \
		(LINUX_VERSION_CODE < VERSION_CODE(2,4,0)))
#  error "This kernel is not stable: not supported by this file"
#endif

#if LINUX_VERSION_CODE < VERSION_CODE(2,4,0)
#  define LINUX_22
#else
#  define LINUX_24
#endif

#if LINUX_VERSION_CODE < VERSION_CODE(2,4,0)
#  define wait_queue_head_t     struct  wait_queue *
#endif

#if LINUX_VERSION_CODE > VERSION_CODE(2,4,0)
#include <linux/init.h>
#include <linux/poll.h>
#else
#include <linux/poll.h>

#define init_waitqueue_head(a) \
                do { if (a!=0) (wait_queue_head_t )*a=NULL;} while (0)
#endif


#if LINUX_VERSION_CODE < VERSION_CODE(2,4,0)

#endif