42 lines
753 B
C
42 lines
753 B
C
#ifndef __SERIAL_H__
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#define __SERIAL_H__
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struct env{
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int id;
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float tem;
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float hum;
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int light;
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//int smog;
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int x;
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int y;
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int z;
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unsigned char led ;
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unsigned char fan;
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unsigned char buzz;
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};
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extern struct env data;
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/**
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* 打开串口设备
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* @param[in] devpath 串口设备路径
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* @return 打开的文件描述符
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* @retval 0 打开设备失败，原因见errno
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*/
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int serial_open(char *devpath) ;
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void serial_Close(int fd) ;
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int serial_Set(int fd, int speed, int flow_ctrl, int databits, int stopbits, int parity) ;
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int serial_init(char *devpath) ;
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int serial_recv_exact_nbytes(int fd, void *buf, int count);
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int serial_send_exact_nbytes(int fd, unsigned char *buf, int count);
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int serial_exit(int fd);
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#endif
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