Serial Programming Tools
Syntax for SCO UNIX/OpenServer |
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#define MSTATUS | 0x407 |
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int | status; | /* status = | */ |
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| /* bit0¡ÐCTS (1:on, 0:off) | */ |
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| /* bit1¡ÐDSR (1:on, 0:off) | */ |
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| /* bit2¡ÐDCD (1:on, 0:off) | */ |
ioctl(moxa_fd, MSTATUS, &status); |
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Syntax for UNIX SVR4.2 |
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#define MSTATUS | 0x407 |
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#include |
| <sys/stropts.h> |
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#include |
| <sys/sysmacros.h> |
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struct strioctl | ioc; |
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int |
| status; /* status = | |
/* bit0¡ÐCTS (1:on, 0:off) | */ |
/* bit1¡ÐDSR (1:on, 0:off) | */ |
/* bit2¡ÐDCD (1:on, 0:off) | */ |
ioc.ic_cmd = MSTATUS; ioc.ic_timout = 0; ioc.ic_len = sizeof(int); ioc.ic_dp = (char *)&status; ioctl(moxa_fd, I_STR, &ioc);
7. MHWFLOW
This function is used to enable/disable hardware flow control. The first open() function of a port will set the hardware flow control bits on or off depending on the [RTS/CTS Hardware Flow Control] configuration in mxadm. However, users might want to control the DTR or RTS signal on their will, thus the RTS flow control bit should be turned off (HWFLowControlOff) in order to take over the control of DTR or RTS signal via function MTCRTS or MTCDTR. MTCRTS and MTCDTR can be effective only after the RTS flow control bit of MHWFLOW is turned off.
Smartio C168H/HS User’s Manual