msgqueue.h

linux下串口的访问

// msgqueue.h

#ifndef	_Msg_queue_H_
#define _Msg_queue_H_



#define MsgDataLen	1024	// message data len of receiving and sending
#define RERMS		0666 

int MsgIdGet( int key );

int MsgRecv( int id, unsigned char * buf, int type );

int MsgSend( int id, unsigned char * buf, int buflen, int type );

int MsgDele( int id );

#endif