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The Windows Dev Center - Hardware pages explain upper and lower filter drivers in detail. [2] For example, the generic USB camera (UVC) driver usbvideo.sys is a function driver, while the bus driver handles USB data from the host controller devices. A lower level filter modifies the behavior of the camera hardware (e.g. watching for interrupt ...
Advanced Configuration and Power Interface (ACPI) is an open standard that operating systems can use to discover and configure computer hardware components, to perform power management (e.g. putting unused hardware components to sleep), auto configuration (e.g. Plug and Play and hot swapping), and status monitoring.
The Pascal microarchitecture, named after Blaise Pascal, was announced in March 2014 as a successor to the Maxwell microarchitecture. [4] The first graphics cards from the series, the GeForce GTX 1080 and 1070, were announced on May 6, 2016, and were released several weeks later on May 27 and June 10, respectively.
As an example, assume the case of Wake-on-LAN. Traditionally, the OS controls Wake-on-LAN and must call third-party device drivers to enable support on a network card. With the HECI bus, the host is able to assert its request line (REQ#), the ME will assert its grant line (GNT#), and the host can send its message using its serial transmit signal.
There is the ability to opt out of APM control on a device-by-device basis, which can be used if a driver wants to communicate directly with a hardware device. Communication occurs both ways; power management events are sent from the BIOS to the APM driver, and the APM driver sends information and requests to the BIOS via function calls.
This can happen when AC power is removed after entering ACPI S4. Applying AC power back and resuming from S4 may result in non detected or even non functioning USB device (erratum 12) Bogus USB ports will be detected by mobile PCH equipped with 6 USB ports (HM55) on the first EHCI controller.
The PureVideo SIP core needs to be supported by the device driver, which provides one or more interfaces such as NVDEC, VDPAU, VAAPI or DXVA.One of these interfaces is then used by end-user software, for example VLC media player or GStreamer, to access the PureVideo hardware and make use of it.
Wind River Systems, Inc., also known as Wind River (trademarked as Wndrvr), is an Alameda, California–based company, subsidiary of Aptiv PLC. The company develops embedded system and cloud software consisting of real-time operating systems software, industry-specific software, simulation technology, development tools and middleware.