Extensible Host Controller Interface xHCI is the newest host controller standard that improves speed, power efficiency and virtualization over its predecessors. Views Read Edit View history. Computer hardware standards USB. From Wikipedia, the free encyclopedia. Compared with UHCI, it moves more intelligence into the controller, and thus is accordingly much more efficient; this was part of the motivation for defining it. It requires a license from Intel.
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Linux Kernel Driver DataBase: CONFIG_USB_XHCI_HCD: xHCI HCD (USB ) support
From Wikipedia, the free encyclopedia. Retrieved from ” https: This article has multiple issues. Intel hosted EHCI conformance-testing and this helped to prevent the incursion of proprietary features.
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CONFIG_USB_EHCI_HCD: EHCI HCD (USB 2.0) support
Retrieved April 13, Extensible Host Controller Interface. Computer hardware standards USB. EHCI was designed [ by whom? Please help to improve this article by introducing more precise citations.
Compared with UHCI, it moves more intelligence into the controller, and thus is accordingly much more efficient; this was part of the motivation for defining it. Ehco Read Edit View history.
The OHCI driver provided low- and full-speed functions for USB ports of a PCI expansion s3c240 with any other chipset vendor’s integrated USB host controllers or discrete controller chipsets attached to the computer’s expansion bus, if present. Please update this article to reflect recent events or newly available information.
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Originally a PC providing high-speed ports had two controllers, one handling low- and full-speed devices and the second handling high-speed devices. It has many fewer intellectual property restrictions than UHCI.
USB patches for 2.6.30 merge window
Extensible Host Controller Interface xHCI is the newest host controller standard that improves speed, power efficiency and virtualization over its predecessors. This article includes a list of referenceshd its sources remain unclear because it has insufficient inline citations.
This article’s factual accuracy may be compromised due to out-of-date information. On the expansion card or motherboard controller, this involves much custom logic, with digital logic engines in the motherboard’s controller chip, plus analog circuitry managing the high-speed differential signals. Because the card has a standard OHCI interface, the OS does not need to know in advance exactly who makes the card or how it works; it hfd safely assume that the card understands the set of well-defined commands that ehhci defined in the standard protocol.
It requires a license from Intel. If a computer provides non-x86 USB 1.