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Date:   Thu, 13 Jun 2019 15:57:05 -0400
From:   "Theodore Ts'o" <tytso@mit.edu>
To:     "R.F. Burns" <burnsrf@gmail.com>
Cc:     linux-kernel@vger.kernel.org
Subject: Re: PC speaker
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On Thu, Jun 13, 2019 at 12:16:37PM -0400, R.F. Burns wrote:
> Is it possible to write a kernel module which, when loaded, will blow
> the PC speaker?

Yes; in fact, it's already been done.  See sound/drivers/pcsp/ in the
Linux kernel sources.

						- Ted