Forwarding serial port over network and back to serial char device on remote host (socat?)

Question

I'm working with a linux application which needs to talk with a remotely-located serial (rs-232) device. I've worked out how to use socat on the remote end to send the device's serial data over an IP connection, but how do I then convert that IP stream back into a (pseudo) serial device character device (e.g. /dev/fakesocatserial0) on the other side?

score 3 · Answer 1 · answered Apr 30 '12 at 22:53

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have you tried sshfs? You can simply mount remote:/dev into somewhere like local:/remote/dev and point to the actual character device

answered Apr 30 '12 at 22:53

platinummonkey

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Well, the remote device is an embedded board with no SSH, so I'm trying to avoid changing its configuration if at all possible. – Alex G May 01 '12 at 17:00
ah, then @mgorven 's socat method is the way to go – platinummonkey May 01 '12 at 17:41

score 2 · Accepted Answer · answered Apr 30 '12 at 23:25

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You should be able to use the PIPE address type of socat to create a Unix pipe to connect to, for example (assuming that the device with the real serial device creates the network connection):

socat PIPE:/dev/fakesocatserial0 TCP-LISTEN:1234

answered Apr 30 '12 at 23:25

mgorven

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Maybe something like this? `socat PTY,link=/dev/fakeserial0,raw,echo=0,wait-slave TCP4:remote-board:1723` – Alex G May 01 '12 at 17:00

Forwarding serial port over network and back to serial char device on remote host (socat?)

2 Answers2