If a vendor ships a driver package that specifies a compatible ID for a driver node, the vendor should make sure that their driver package can support all the hardware that exposes that compatible ID. Download the latest drivers, firmware, and software for your HP EliteDisplay E273m 27-inch Monitor.This is HP’s official website that will help automatically detect and download the correct drivers free of cost for your HP Computing and Printing products for Windows and Mac operating system. The list of compatible IDs can be obtained programmatically by retrieving the DEVPKEY_Device_CompatibleIds property on a device.
For example, that property can be retrieved with APIs such as IoGetDevicePropertyData, SetupDiGetDeviceProperty, or CM_Get_DevNode_Property. The list of compatible IDs that this routine retrieves is a REG_MULTI_SZ value. When processing devices that have been installed with a driver package, the kernel-mode PnP manager also calls the DriverEntry and AddDevice routines of the drivers in a device's device stack and sends the IRP_MN_START_DEVICE request to start the device.The maximum number of characters in a compatible ID list, including a NULL terminator after each compatible ID and a final NULL terminator, is REGSTR_VAL_MAX_HCID_LEN. If a device arrival is reported and this is a new device, the kernel-mode PnP manager will either directly install a driver package on that device or notify the user-mode PnP manager that a new device is present on the system and must be installed. When a bus driver detects an arrival or removal of a child device, it reports that to the kernel-mode PnP manager. When the computer starts, the PnP manager builds this tree by using information from drivers and other components, and updates the tree as devices are added or removed. The device tree contains information about the devices present on the system. The kernel-mode PnP manager maintains the Device Tree that keeps track of the devices in the system. Installing new devices with a matching driver package Processing addition or removal of devices while the system is running The Plug and Play (PnP) manager provides the support for PnP functionality in Windows and is responsible for the following PnP-related tasks:ĭevice detection and enumeration while the system is booting
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