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The PlayStation controller driver was contributed to the Linux kernel by Sony: https://www.phoronix.com/news/Sony-HID-PlayStation-PS5

There are alternative drivers out there (for use with knockoff controllers that try to replicate the offical device IDs, for example), but if you haven't done anything special you're probably using the Sony driver.

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I have a PS4 controller, not a PS5 controller. But I guess they did this for the PS4 controller as well? I would not have expected that from Sony of all companies.

Edit: As far as I can tell, the PS5 driver is hid-playstation while the PS4 driver hid-sony. hid-sony has had commits from at least one Sony employee since 2017, but doesn't seem to have originated from Sony.

Someone posted an article on HN recently that said the best way to detect a knock-off controller is that it'll cause the Linux driver to kernel panic.

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