Add a controlling packet\frame for server

[pompushko]

Hello

Could you please, add, a controlling packet\frame for server?
Its like to do something on server side, e.g. run script or command or restart cannelloni server etc.

Thank you :)

[mguentner]

Why aren't you using ssh for that? You can grant an unprivileged user using sudo exactly the rights to e.g. restart cannelloni using systemctl.

[pompushko]

Why aren't you using ssh for that? You can grant an unprivileged user using sudo exactly the rights to e.g. restart cannelloni using systemctl.

Nope. No any SSH :)

But I use GPIO. And need to on\off some GPIO pins via simple behavior.
For example, device have 3 CAN-bus lines. And I made a simple multiplexer to use 3 CAN-bus with one IC. All works perfect, but need to touch GPIO :D

[mguentner]

Why don't you use something like this then?
ssh user@your_device 'systemctl stop cannelloni; echo "1" > /sys/class/gpio/gpio9/value; systemctl start cannelloni'

[pompushko]

Why don't you use something like this then? ssh user@your_device 'systemctl stop cannelloni; echo "1" > /sys/class/gpio/gpio9/value; systemctl start cannelloni'

Because this is simplest way if you have a SSH connection.
In my case - I have only 20000 port :)