Steam Deck natively recognizes the PS3 controller. Simply plug it in via USB, wait for Steam OS to recognize it, then unplug USB cable and it will work over Bluetooth without needing
gcc-4.5.2-PS3/NEWS at master · ps3dev/gcc-4.5.2-PS3 · GitHub
How to install the PS3 controller in Windows | Drivers.com
PS3 - PS3 Toolset 1.2.004 release. | PSX-Place
Steam Deck natively recognizes the PS3 controller. Simply plug it in via USB, wait for Steam OS to recognize it, then unplug USB cable and it will work over Bluetooth without needing
Connect PlayStation 3 controller to PC with ViGem and x360ce - Wiretuts
Controller:DualShock 3 - PCGamingWiki PCGW - bugs, fixes, crashes, mods, guides and improvements for every PC game
Amazon.com: Vbepos Mobile Gaming Controller, Upgrade Bluetooth & 2.4G Wireless Controller for iPhone Android/PC Windows/Smart TV/ PS3/ PS4 : Video Games
Connect PlayStation 3 controller to PC with ViGem and x360ce - Wiretuts