| 摘要 |
<p>Embodiments of the present invention relates to the USB device field and discloses a method and an apparatus for modifying a USB device driver matching string so that after a PID or a product-port number of a device is changed, a driver program corresponding to the device may still be determined without modifying a driver matching file. The method includes: when a plug-and-play manager sends a request for querying device information to a physical device object, capturing, by a filter driver, the request for querying device information, and sending the request for querying device information to an enumeration driver; receiving, by the filter driver, device information that is returned, according to the request for querying device information, by the enumeration driver, and forming, according to the returned device information and compatibility information of the device, a device driver matching string that includes a device vendor identification, a device subclass, and a device protocol type; and sending the formed device driver matching string to the plug-and-play manager. Embodiments of the present invention are mainly applied in a device driver matching process.</p> |
