USB_STRING_DESCRIPTOR structure (usbspec.h)
The USB_STRING_DESCRIPTOR structure is used by USB client drivers to hold a USB-defined string descriptor. The members of this structure are described in the Universal Serial Bus 3.1 Specification available at USB Document Library. See section 9.6.9.
Syntax
typedef struct _USB_STRING_DESCRIPTOR {
UCHAR bLength;
UCHAR bDescriptorType;
WCHAR bString[1];
} USB_STRING_DESCRIPTOR, *PUSB_STRING_DESCRIPTOR;
Members
bLength
Specifies the length, in bytes, of the descriptor.
bDescriptorType
Specifies the descriptor type. Must always be USB_STRING_DESCRIPTOR_TYPE.
bString[1]
Pointer to a client-allocated buffer that contains, on return from the host controller driver, a Unicode string with the requested string descriptor.
Remarks
This structure is used to hold a device, configuration, interface, class, vendor, endpoint, or device string descriptor. The string descriptor provides a human-readable description of the component.
Strings returned in bString are in Unicode format and the contents of the strings are device-defined.
Requirements
| Requirement | Value |
|---|---|
| Header | usbspec.h (include Usbioctl.h) |