Cygwin provides a posix layer for interfacing with i/o devices, looking at this line you have written:
$ stty -F /dev/com1
You need some more info about how serial i/o ports are described in a posix system, this page is a good resource:
http://www.easysw.com/~mike/serial/serial.html
Regards
Arash
Problem reading from COM1
Hello,
I have installed Cygwin on a windows98 computer. I have a problem using the serial port. (COM1) It is possible to write to COM1 but impossible to read from.
ls >com1 data is send and received
cat< com1 nothing is received.
I did several tests with different programs. But nothing is received. (under cygwin) A normal HyperTerminal on windows did work. The stty command have the following settings.
$ stty -F /dev/com1 speed 9600 baud; line = 0; intr = <undef>; quit = <undef>; erase = <undef>; kill = <undef>; eof = <undef>; susp = <undef>; rprnt = <undef>; werase = <undef>; lnext = <undef>; flush = <undef>; min = 0; time = 0; -cread -brkint -icrnl -imaxbel -opost -onlcr -isig -icanon -iexten -echo -echoe -echok -echoctl -echoke
$ stty -F /dev/com1 cread stty: /dev/com1: unable to perform all requested operations
Why Can?t I read from the COM1? Is it because I use windows 98? Why can?t stty set cread?
Thanks Robert Bon
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