select on the parallel port, and non-blocking io
Kurt Roeckx
Q@ping.be
Mon Jul 16 08:27:00 GMT 2001
I use select on 2 fds, one of which is the parallel port.
The parallel port was opened like this:
port = open("lpt1", O_RDWR, O_NONBLOCK);
There shouldn't be any data on the port, since there is no device
attached, or it's powered down (I tried both). Yes select() says
I can read from it, and blocks on it.
Kurt
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