Open Host Controller Interface ( OHCI) is an open standard.

IEEE 1394 Open Host Controller Interface On the software side, it requires a device driver (called a Host Controller Driver, or HCD). 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. The driver software is typically provided with an operating system of a personal computer, but may also be implemented by application-specific devices such as a microcontroller. ( Learn how and when to remove this template message)Ī host controller interface ( HCI) is a register-level interface that enables a host controller for USB or IEEE 1394 hardware to communicate with a host controller driver in software. Please help update this article to reflect recent events or newly available information. I'd very much like for this to work but this has been a real headache.This article's factual accuracy may be compromised due to out-of-date information. It also still tells me the error VIA USB 3.0 eXtensible Host Controller - 1.0 (Microsoft).Īll the other computer specs are just fine. The Inateck ports work with other USB 3.0 devices/thumbdrives - but when the Rift S is plugged in it wont show up or is recognized.

Just shows up when plugged into the one that says it's not compatible on my motherboard.Īlong with a caution sign it says - 'Some of the hardware that powers your USB ports is not compatible: VIA USB 3.0 eXtensible Host Controller - 1.0 (Microsoft)'īefore going out and purchasing the PCI card I made sure my VIA USB drivers for that are updated and they still, currently up to the latest driver. Now it wont recognize the Oculus if it's plugged into any of these USB ports on the PCI card. I bought the 7 port one, installed it and the drivers, restarted the computer - the whole deal. I saw that this can be an issue and oculus recommended high speed USB 3.0 PCI card from inateck. Just recently bought a Rift s and for some reason it said my USB ports I have on my motherboard aren't compatible.

Via usb extensible host controller