Determine if a USB device matches an entry within a usbDeviceId table.

const struct usbDeviceId *UsbMatchId( 
    struct usbDeviceInfo * udi, 
    const struct usbDeviceId *id 
); 
 
struct usbDeviceId { 
    // how to conduct match 
    uint16_t match_flags; 
    // Fields used for product-specific matches 
    uint16_t idVendor; 
    uint16_t idProduct; 
    uint16_t bcdDevice_lo; 
    uint16_t bcdDevice_hi; 
    // Fields used for class matches 
    uint8_t bDeviceClass; 
    uint8_t bDeviceSubClass; 
    uint8_t bDeviceProtocol; 
    // Fields used for interface class matches 
    uint8_t bInterfaceClass; 
    uint8_t bInterfaceSubClass; 
    uint8_t bInterfaceProtocol; 
    void * client_info;          // client specific data 
}; 

Parameters

udi

A pointer to a valid usbDeviceInfo structure.

id 

A pointer to a usbDeviceId structure.

Return Values

NULL	A match was not found
Non-NULL	A valid usbDeviceId entry.

Requirements