SD_REQUEST_FUNCTION enumeration (ntddsd.h)
The SD_REQUEST_FUNCTION enumeration indicates the type of request packet that a Secure Digital (SD) card driver sends to the bus driver.
Syntax
typedef enum {
SDRF_GET_PROPERTY,
SDRF_SET_PROPERTY,
SDRF_DEVICE_COMMAND,
SDRF_ERASE_COMMAND,
SDRF_MMC_SOFT_RESET,
SDRF_MMC_HPI
} SD_REQUEST_FUNCTION;
Constants
SDRF_GET_PROPERTY Indicates a get property request. The SDBUS_PROPERTY enumeration lists the properties that an SD driver can get or set. |
SDRF_SET_PROPERTY Indicates a set property request. The SDBUS_PROPERTY enumeration lists the properties that an SD driver can get or set. |
SDRF_DEVICE_COMMAND Indicates a device-specific command. |
SDRF_ERASE_COMMAND |
SDRF_MMC_SOFT_RESET |
SDRF_MMC_HPI |
Remarks
The caller of the SdBusSubmitRequest routine assigns a value from the SD_REQUEST_FUNCTION enumeration to the RequestFunction member of the SDBUS_REQUEST_PACKET structure to specify the type of request.
Requirements
Requirement | Value |
---|---|
Header | ntddsd.h (include Ntddsd.h) |