Revision as of 08:53, 27 May 2025 edit GreenC bot (talk \| contribs) Bots 3,053,637 edits Reformat 2 archive links. Wayback Medic 2.5 per WP:URLREQ#citeftp ← Previous edit		Latest revision as of 19:09, 11 August 2025 edit undo Joshuawhe (talk \| contribs) 1 edit add Enhanced Host Controller Interface to the list of predecessors. Tag: Visual edit
Line 4: The '''eXtensible Host Controller Interface''' ('''xHCI''') is a technical specification that provides a detailed framework for the functioning of a computer's [[host controller]] for [[Universal Serial Bus]] (USB). Known alternately as the [[USB 3.0]] host controller specification, xHCI is designed to be backward compatible, supporting a wide range of USB devices from older USB 1.x to the more recent USB 3.x versions. Distinct from its predecessors, the [[Open Host Controller Interface]] (OHCI) ~~and~~, the [[Universal Host Controller Interface]] (UHCI) and the [[Host controller interface (USB, Firewire)#EHCI\|Enhanced Host Controller Interface]] (EHCI), xHCI offers several technological improvements. Specifically, it is designed to handle multiple data transfer speeds (low, full, high, and SuperSpeed) within a single unified standard. This makes it more efficient in managing computational and power resources, a feature particularly beneficial for mobile devices with limited power capabilities like tablets and smartphones. Additionally, xHCI simplifies the architecture needed to support a mixture of low-speed and high-speed devices, which streamlines the development of drivers and system software. xHCI marks a significant improvement over its predecessors, the Open Host Controller Interface (OHCI), the Universal Host Controller Interface (UHCI) and the Enhanced Host Controller Interface (EHCI), in several key ways:

Extensible Host Controller Interface: Difference between revisions