[BRLTTY] Questions about brltty and Orca

[Didier Spaier]

Hello again,

One more question.

7) brltty will be started by default in the installed system if a
Braille device has been used during installation. 

But we start brltty at the beginning of installation, whether or not
/proc/cmdline includes "brltty=..."

What is the simplest way to know if a Braille device is in use during
installation even if there is no "brltty=" in the command line?