Previously, with Stas's standalone patch, one was able to switch
between (a) no speaker (b) beep/pcspkr (c) beep/pcspkr and
PCM/snd-pcsp, all by means of modprobe/rmmod.
Now, if pcspkr is deactivated when snd-pcsp is built... I would
not get any tone out of that piece of hardware.
Except if snd-pcsp itself contains beep code, and that would
be sort of redundant when it is already in pcspkr.
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