| _AutoRunInfoType | Data Structure to be broadcast to the drivers to identify the card inserted and for each registered driver to examine |
| AutoRunSlotDriverType | Data Structures that identify the broadcaster (the slot driver for the "source" union) that issued the sysNotifyDriverSearch notification |
| SDIOAutoPowerOffType | Used with SDIOGetAutoPowerOff and SDIOSetAutoPowerOff to specify auto-power-off parameters for a specific SDIO card function |
| SDIOAutoRunInfoType | This structure is passed to the SDIOGetAutoRun function and is used to specify the function making the request and the SDIO bit mode that is to be set |
| SDIOCallbackType | Used in conjunction with the SDIOGetCallback and SDIOSetCallback functions, this structure associates a C function with a particular SDIO function callback type |
| SDIOCardInfoType | This structure is used in conjunction with the SDIOGetCardlnfo function to return information about the SDIO card |
| SDIOCurrentLimitType | Used with SDIOGetCurrentLimit, SDIOSetCurrentLimit, and SDIORemainingCurrentLimit to specify an SDIO card function and the maximum current that can be required by that function |
| SDIOPowerType | Used by SDIOGetPower and SDIOSetPower to get and set an SD card function's power setting |
| SDIORWDirectType | This structure is used with SDIORWDirect and encapsulates the read or write operation |
| SDIORWExtendedBlockType | This structure is used with SDIORWExtendedBlock and encapsulates the read or write operation |
| SDIORWExtendedByteType | This structure is used with SDIORWExtendedByte and encapsulates the read or write operation |
| SDIOSDBitModeRequestType | This structure is passed to the SDIOSetBitMode function and both specifies the function making the request and the SDIO bit mode that is to be set |
| SDIOSlotInfoType | This structure is used with SDIOGetSlotlnfo to obtain information about a specific SDIO function's slot driver |
| SDIOTupleType | This structure is used with SDIOTupleWalk and both identifies the data block (tuple) to be located and indicates where the search results should be placed |
