_URB_CONTROL_GET_CONFIGURATION_REQUEST - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// usb.h
struct _URB_CONTROL_GET_CONFIGURATION_REQUEST {
struct _URB_HEADER Hdr;
PVOID Reserved;
ULONG Reserved0;
ULONG TransferBufferLength;
PVOID TransferBuffer;
PMDL TransferBufferMDL;
struct _URB *UrbLink;
struct _URB_HCD_AREA hca;
UCHAR Reserved1[8];
};
View the official Windows Driver Kit DDI referenceNo description available.
The _URB_CONTROL_GET_CONFIGURATION_REQUEST structure is used by USB client drivers to retrieve the current configuration for a device.
HdrPointer to a _URB_HEADER structure that specifies the URB header information. Hdr.Function must be set to URB_FUNCTION_GET_CONFIGURATION.
Hdr.Length must equal sizeof(_URB_CONTROL_GET_CONFIGURATION_REQUEST).
ReservedReserved. Do not use.
Reserved0Reserved. Do not use.
TransferBufferLengthMust be 1. This member specifies the length, in bytes, of the buffer specified in TransferBuffer or described in TransferBufferMDL.
TransferBufferPointer to a resident buffer for the transfer or is NULL if an MDL is supplied in TransferBufferMDL. The bus driver returns a single byte that specifies the index of the current configuration.
TransferBufferMDLPointer to an MDL that describes a resident buffer or is NULL if a buffer is supplied in TransferBuffer. The bus driver returns a single byte that specifies the index of the current configuration. This MDL must be allocated from nonpaged pool.
UrbLinkReserved. Do not use.
hcaReserved. Do not use.
Reserved1Reserved. Do not use.
The reserved members of this structure must be treated as opaque and are reserved for system use.