[BRLTTY] How do brltty should be started in case or a bluetooth or serial line connection

[Didier Spaier]

On 14/02/2016 16:45, Jason White wrote:
> Didier Spaier <didier at slint.fr> wrote:
>> At the moment in an installed Slint, at startup the script rc.S starts
>> brltty running "/etc/rc.d/rc.brltty start" if the script is executable.
>>
>> This not actually necessary in case of an USB connection as udev takes
>> care of starting a daemon a soon as a device is plugged in.
>>
>> But is it still necessary if the display is connected through a serial
>> line or bluetooth? I assume that the answer is yes reading the manual
>> but would like a confirmation.
> 
> 
> The answer is indeed yes. In the case of a serial port, BRLTTY needs to access
> the port in order to detect an attached braille display. Bluetooth requires
> detection of a paired device, which udev can't do. Think of it this way: udev
> detects the Bluetooth controller, but you need BRLTTY to operate that
> controller so as to search for an available braille display.

Thanks for the clarification.