Hi,
Does anyone have a solution to this problem?
I have a serial port (connected to a GPS at 4800 baud). I have multiple
processes that need to read from that serial port. I need all of the
processes to read the same data, essentially creating a one way chat
from the serial port to all processes listening in.
I've tried using socat but if I create a socket connection, using, e.g.
socat TCP4-LISTEN:25555,reuseaddr,fork /dev/ttyUSB0,b4800,raw,echo=0
... then have multiple connections in to TCP socket 25555, then each
socket connection gets part of the data stream from the serial port.
I've tried setting up a multicast, but because multicast is UDP based
I'm seeing occasional packet-out-of-order and packet-dropped issues.
Ideally I'd like it to be TCP based -- I have one process that can
connect to a TCP socket for its data rather than read from the port, and
I can use socat to create PTYs for the other processes that expect a
serial port provided the data comes in in the right order.
Yes, I know about gpsd, and one of the processes that needs to read the
serial data is gpsd, but I have some processes that need to read the raw
data provided by the GPS and not gpsd's output.
Thanx,
--
Del
Babel Com Australia
http://www.babel.com.au/
ph: 02 9966 9476
fax: 02 9906 2864
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