On Mon, Oct 11, 2021 at 04:16:20PM +0000, Mohammed Eleffendi wrote: > Hi, We are implementing a bare-metal driver for the USB xHCI > controller on Tiger Lake UP3 and need a programming guide/Requirement > Reference document. The one publicly available, which has Rev 1.2 is > outdated. Then contact Intel about this, as this doesn't seem to have much to do with Linux. Why not just use Linux instead? good luck! greg k-h