rs485.h

这是pxa270的RS485驱动程序

#ifndef __MAGICARM270_RS485_H__
#define __MAGICARM270_RS485_H__

#include <linux/ioctl.h>

#define RS485_MAGIC		'K'
#define RS485_SET_MODE		_IOW('K',  0, int)
#define RS485_MAXNR		1

#define RS485_MODE_SEND 1
#define RS485_MODE_RECV 0

#endif