Arch Linux

Arakis

Member

From: Hamminkeln - Germany

Registered: 2013-08-11

Posts: 46

Website

Write to /dev/fb0 of remote computer

Hello,
i know, that the /dev/* files are device files, no real files, but is there a way to access them via network?

I mounted the remote file system via sshfs, but when i try "fdisk /mnt/dev/sda" or "cat /dev/urandom > /mnt/dev/fb0", i get a permission denied error (even as root).

I want to access the remote framebuffer for developing software for embedded hardware, but want to debug the application on my main archlinux computer.

Any idea for a trick?

Greetings,
Sebastian

teateawhy

Member

From: GER

Registered: 2012-03-05

Posts: 1,138

Website

Re: Write to /dev/fb0 of remote computer

The examples you have listed, like fdisk and cat /dev/urandom could simply be done by logging in with ssh and then running those commands.
What you probably really want is one of these options:
#1 You could write a simple program that accepts tcp connections, and forwards all the received data to /dev/fb0, then run that on the embedded device. Interesting programming exercise.
#2 netcat
EDIT:
#3 mkfifo and ssh

Last edited by teateawhy (2015-04-09 23:58:59)

R00KIE

Forum Fellow

From: Between a computer and a chair

Registered: 2008-09-14

Posts: 4,734

Re: Write to /dev/fb0 of remote computer

I'm not sure it will work for /dev/fb0 but you could take a look at nmb, I've tried it for block devices and it worked well.

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R00KIE
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