USBIDs

USBIDs are unique identifiers assigned to USB devices. They consist of two parts: a Vendor ID (VID) and a Product ID (PID). The VID is a 16-bit number assigned by the USB Implementers Forum (USB-IF) to a specific manufacturer or vendor. The PID is a 16-bit number assigned by the vendor to a specific product. Together, the VID and PID uniquely identify a particular device model from a particular manufacturer. Operating systems and other software use USBIDs to identify and communicate with USB devices. When a USB device is connected, the host controller reads its VID and PID. This information is then used to determine which drivers and software are needed to operate the device. If a matching entry is found in a device database, the appropriate drivers are loaded. If no match is found, the system may prompt the user to install drivers or may attempt to use a generic driver. USBIDs are crucial for the plug-and-play functionality of USB devices, allowing for seamless integration and operation across different computer systems. A public database of USBIDs is maintained, allowing developers and users to look up information about specific devices.