I have to set the txpower of my wifi card to 10 or 11 dBm so that it can work properly (the macbook issue). The only way I found now is using iwconfig with root permission. Is there a way to config it, i.e. set it automatically after boot? Put the command in boot.postBootCommand doesn’t work because it seems the device is not detected at that time.
OK, I made this by a systemd service, but have to restart on failure because sometimes the command will return an ‘Input/output error’. Is there a time slot where I can ensure all the network interfaces are ready?
Not sure if this helps, but on my machine there is
network-interfaces.target (its deprecated though?).
Also NetworkTarget might be helpful.
You can either write a udev rule or add .device unit as dependency to your service: linux - How to write a systemd service that depends on a device being present? - Super User