1. Scanning for peripherals

When Kodi starts up, the peripherals subsystem does a scan for peripherals. Kodi supports several busses including USB. Two new virtual busses have been added:

• Add-on bus - joysticks are provided by peripheral library binary add-ons
• Application bus - provides the keyboard, as keyboard input comes from the logical level of the application, not a specific keyboard

This chart shows joysticks being scanned through the peripheral API. The keyboard is always assumed to be attached.