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POHow create a virtual io device in Linux that proxies data to real device?
 

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  1. POHow create a virtual io device in Linux that proxies data to real device?
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    <p>I have an interesting problem. I am working on an embedded box with multiple instances of Linux running each on an ARM processor. They are connected over internal 1GBps network. I have a serial port device node attached to processor A (Lets say Linux-A running on it). I have a program running on processor B (Lets say on Linux-B) access the serial port device as if it is attached to Linux-B locally. <br> My program invokes term i/o type api calls on device node to control tty echo, character mode input. What I am wondering is if there is a way to create a virtual serial device that is available on Linux-B somehow talking to real serial device on Linux-A over internal network.<br></p> <p>I am thinking something along the lines of: Linux-B has /dev/ttyvirtual. Anything that gets written to it gets transported over network socket to Linux-A serialserver. The serial server exrcises the api calls on real device lets say /dev/ttys0. Any data waiting on ttys0 gets transported back to /dev/ttyvirtual.</p> <p>What are all the things involved to get this done fast?</p> <p>Thanks<br> Videoguy</p> <p>Update: I found a discussion at <a href="http://fixunix.com/bsd/261068-network-socket-serial-port-question.html" rel="nofollow">http://fixunix.com/bsd/261068-network-socket-serial-port-question.html</a> with great pointers. <br> Another useful link is <a href="http://blog.philippklaus.de/2011/08/make-rs232-serial-devices-accessible-via-ethernet/" rel="nofollow">http://blog.philippklaus.de/2011/08/make-rs232-serial-devices-accessible-via-ethernet/</a> </p>
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    1. COdiagram would be helpful ;)
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      1. USMerlin
 

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