Re: [opensuse] howto - Read Data from Serial Port?

David C. Rankin wrote:
Banning someone out of personal spite is uncalled for fascism wrote:
David C. Rankin wrote:
Listmates,

A linux question. I have a phone system that will output call logs through an rs-232 cable. I would like to write a script that will read the data from the serial port and input it into a mysql table.

cat /dev/ttyS_ | data_storing_program


Thanks Theo, and Mr. fascism,

I will look at the python interface and definitely see if I can make the cat script work.

Another question, If I write a small script and "sleep" for 30 seconds or so during the loop to cut down on racing the loop, will that have any unintended consequences I should look out for?

Only if the pipe fills up REALLY quickly.

If I remember correctly, it can hold a few kilobytes.

The size of the pipe can be determined this way:

$ echo "`ulimit -p` 512 * p" | dc

For most serial communications, you won't have to worry about
the pipe overflowing, because serial ports are slow in
comparison to processor speed.

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