Mtcrts, Mtcdtr – Moxa Technologies INTELLIO C218 User Manual
Page 62

4-8
Intellio C218Turbo /PCI User's Manual
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/XENIX
#define MTCRTS
0x403
#define TurnON
1
#define TurnOFF
0
ioctl(moxa_fd, MTCRTS, TurnON);
ioctl(moxa_fd, MTCRTS, TurnOFF);
Syntax for UNIX SVR4
#include
<sys/stropts.h>
#include
<sys/sysmacros.h>
#define MTCRTS
0x403
#define TurnON
1
#define TurnOFF
0
struct strioctl
ioc;
int
setting;
setting = TurnON /* or TurnOFF */;
ioc.ic_cmd = MTCRTS;
ioc.ic_timout = 0;
ioc.ic_len = sizeof(int);
ioc.ic_dp = (char *)&setting;
ioctl(moxa_fd, I_STR, &ioc);
4. MTCDTR
This function, only valid when hardware flow control is turned off (see
MHWFLOW), is used to drive DTR signal on or off.