CS_DES structure (cfgmgr32.h)

The CS_DES structure is used for specifying a resource list that describes device class-specific resource usage for a device instance. For more information about resource lists, see Hardware Resources.

Syntax

typedef struct CS_Des_s {
  DWORD CSD_SignatureLength;
  DWORD CSD_LegacyDataOffset;
  DWORD CSD_LegacyDataSize;
  DWORD CSD_Flags;
  GUID  CSD_ClassGuid;
  BYTE  CSD_Signature[ANYSIZE_ARRAY];
} CS_DES, *PCS_DES;

Members

CSD_SignatureLength

The number of elements in the byte array specified by CSD_Signature.

CSD_LegacyDataOffset

Offset, in bytes, from the beginning of the CSD_Signature array to the beginning of a block of data. For example, if the data block follows the signature array, and if the signature array length is 16 bytes, then the value for CSD_LegacyDataOffset should be 16.

CSD_LegacyDataSize

Length, in bytes, of the data block whose offset is specified by CSD_LegacyDataOffset.

CSD_Flags

Not used.

CSD_ClassGuid

A globally unique identifier (GUID) identifying a device setup class. If both CSD_SignatureLength and CSD_LegacyDataSize are zero, the GUID is null.

CSD_Signature[ANYSIZE_ARRAY]

A byte array containing a class-specific signature.

Remarks

The data block identified by CSD_LegacyDataSize and CSD_LegacyDataOffset can contain legacy, class-specific data, as stored in the DeviceSpecificData member of a CM_PARTIAL_RESOURCE_DESCRIPTOR structure, if the structure's Type member is CmResourceTypeDeviceSpecific.

The class-specific signature identified by CSD_SignatureLength and CSD_Signature can contain additional class-specific device identification information.

Requirements

   
Header cfgmgr32.h (include Cfgmgr32.h)

See also

CM_PARTIAL_RESOURCE_DESCRIPTOR

CS_RESOURCE