hexone2086/hx-serial
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CaoWangrenbo
2024-12-20 10:50:29 +08:00
commit feb6052c97
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hx_serial.h Normal file
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#ifndef _BY_SERIAL_H__
#define _BY_SERIAL_H__
#define BY_SERIAL_DEV_STATUS_STDBY 0x00
#define BY_SERIAL_DEV_STATUS_ERROR 0xFF
#define BY_SERIAL_DEV_STATUS_OPEND 0x01
typedef struct by_serial_t {
int fd;
char dev_name_str[40];
int dev_name_len;
int dev_status;
} by_serial_t;
/* Open serial device. */
extern int by_serial_init(by_serial_t *serial_port, const char *dev_name);
/* Set baudrate. */
extern int by_serial_set_baudrate(by_serial_t *serial_port, int baudrate);
/* Set databits, stopbits, parity. */
extern int by_serial_set_parity(by_serial_t *serial_port, int databits, int stopbits, char parity);
/* Write buff of specified length, return wrote length. */
extern int by_serial_write(by_serial_t *serial_port, const char *buff, const int len);
/* Read buff of specified length, return read length. */
extern int by_serial_read(by_serial_t *serial_port, char *buff, const int len);
/* Return used serial buffer len. */
extern int by_serial_get_used_buffer_len(by_serial_t *serial_port);
#endif