🚀 go-pugleaf

davidson@cs.ubc.ca (Mark Davidson) writes:


]I'm writing an software interface for a PS/2 model 90 to communicate
]with a Sony videodisc recorder (LVR-5000) and I'm having problems
]setting up the serial port. I looked at the FAQ BTW,

]I've defined the name and the settings of the port in the following
]macro

]#define DEFAULT_PORT "COM1: 9600, N, 8, 1"

]setup_tty(char *dev_name)
]{
]   int ofile_d;
]   if (!( ofile = fopen(dev_name, "w"))) { 

You can't open a device named "COM1: 9600,N,8,1" (or any combination
of this).  You can only open "COM1:".  If you want to set the baud
rate, you might pass this DEFAULT_PORT string through a system() call
to invoke MODE.COM, but that's slow and ugly.

The better solution is to get Ralf Brown's Interrupt List, and look at
the INT14 BIOS calls to set the baudrate. 

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