[BRLTTY] Minimum stuff needed to play a sound in an installer.

[Didier Spaier]

Hi there,

I need to play a sound as a prompt for blind users in
a Linux installer.

I ship the pcspkr module so I can just issue:
   echo -e "\a"
So far, so good.

But I have been told that most modern legacy-free
PCs don't have pcspkr support anymore.

Then, what would be the bare minimum stuff to ship
in the installer to just play a sound, knowing that it
has absolutely no sound support at the moment (no
kernel module for sound, no userspace application)?

TIA for you answers and best regards,
Didier