Security News > 2021 > June > Can *YOU* blow a PC speaker using only a Linux kernel driver?
Kernel.org Subject: PC speaker Date: Mon, 14 Jun 2021 23:32:32 -0400 Is it possible to write a kernel module which, when loaded, will blow the PC speaker?
The idea was raised about seeing if there was a way to blow the PC speaker by loading a kernel module.
If you wrote a value of 1 into the speaker control bit, the speaker magnet would actuate and the speaker would jump to its "Energised" position.
Could you actually blow a PC speaker if you had the sort of precise control over it that you would get at Linux kernel level?
As our legendary questioner keeps asking, could you blow a PC speaker with a kernel driver?
You could try to freak out the speaker by running it through a carefully-constructed cascade of frequencies that would tax its physical resilience, except that the PC speaker almost certainly isn't good enough to notice, let alone to reproduce reliably enough, the complex and chaotic physical motion you had in mind.
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