SD_REQUEST_FUNCTION - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers
// ntddsd.h

typedef enum {
  SDRF_GET_PROPERTY,
  SDRF_SET_PROPERTY,
  SDRF_DEVICE_COMMAND,
  SDRF_ERASE_COMMAND,
  SDRF_MMC_SOFT_RESET,
  SDRF_MMC_HPI
} SD_REQUEST_FUNCTION;
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (ne-ntddsd-sd_request_function)

SD_REQUEST_FUNCTION enumeration

Description

The SD_REQUEST_FUNCTION enumeration indicates the type of request packet that a Secure Digital (SD) card driver sends to the bus driver.

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.

See also

SDBUS_REQUEST_PACKET

SdBusSubmitRequest