[#460] - Option to disable BLE advertising (USB-only mode)

[naaraxi]

resolves #460

default is on
turning it off silences the radio and drops any live BLE link

note: you can only change it over USB, so you can't cut off the link you're using

usage:

• hw settings bleadv --- check status
• hw settings bleadv -d --- off
• hw settings bleadv -e --- on
• hw settings store --- save after enabling/disabling BLE

[github-actions]

You are welcome to add an entry to the CHANGELOG.md as well

[GameTec-live]

Stupid question: What would be wrong with cutting the active link? As long as the client shows a warning or smthng? I dont think itd break anything? Your connections just gone then until you find something USB capable.

For example iOS can only do BLE, so you cant disable BLE on iOS?

[naaraxi]

@GameTec-live

Nothing particularly wrong with it, I just figured it's cleaner this way.
If we were to remove the USB gate, and you cut the connection while you're connected via BLE, the setting is in memory and will persist until the next reboot / wake from deep sleep (at which point it will read the flash and re-enable BLE).
Saving the setting when the only way to connect to it is via BLE would essentially render it useless, so I'd advise against implementing something like that.

[GameTec-live]

Oh right, because you couldnt send the save command at this point?

[naaraxi]

Correct. It's possible to add a save to it, but I really wouldn't do that :D