serial

Functions
int	serial_open (char *comport, int highspeed)
	serial port open
void	serial_close (int sfd)
	serial port close

---

Function Documentation

void serial_close

(

int

sfd

)

serial port close

Close the serial port file descriptor and restore terminal and HW com port to their original settings.

Parameters:

sfd	serial file descriptor returned from serial_open

int serial_open	(	char *	comport,
		int	highspeed
	)

serial port open

Open the serial port device file (e.g. /dev/ttyUSB0) for read/write at default 9600bps operational mode of Digole displays. Set terminal characteristics for binary data and no HW flow control. Save the current tty and HW com port attributes to be restored at shutdown via serial_close

Parameters:

comport	string value for the device file (e.g. "/dev/ttyUSB0")
highspeed	when non-zero, the UART is opened at 115200baud