Moxa Technologies Moxa Smartio C168H Manual de usuario descargar pdf (Pagina 66)

4-8 Smartio C168H/HS User’s Manual

Syntax for UNIX SVR4.2

#include <sys/stropts.h>

#include <sys/sysmacros.h>

#define MOBUFED 0x402

struct strioctl ioc;

int count; /* number of bytes queued in the output

buffer */

ioc.ic_cmd = MOBUFED;

ioc.ic_timout = 0;

ioc.ic_len = sizeof(int);

ioc.ic_dp = (char *)&count;

ioctl(moxa_fd, I_STR, &ioc);

Note: See MIBUFED for influence of STREAMS driver.

3. MTCRTS

This function, only valid when hardware flow control is turned off (see

MHWFLOW), is used to drive RTS signal on or off.

Syntax for SCO UNIX/OpenServer

#define MTCRTS 0x403

#define TurnON 1

#define TurnOFF 0

ioctl(moxa_fd, MTCRTS, TurnON);

ioctl(moxa_fd, MTCRTS, TurnOFF);

Syntax for UNIX SVR4.2

#include <sys/stropts.h>

#include <sys/sysmacros.h>

#define MTCRTS 0x403

#define TurnON 1

#define TurnOFF 0

struct strioctl ioc;

int setting;

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Moxa Technologies Moxa Smartio C168H Manual de usuario Pagina 66