openharmony 鸿蒙 capi-scsiperipheralddk-scsiperipheral-request

2026-08-25 浏览 (1)

ScsiPeripheral_Request

typedef struct ScsiPeripheral_Request {...} ScsiPeripheral_Request

Overview

Defines the request structure.

Since: 18

Related module: ScsiPeripheralDDK

Header file: scsi_peripheral_types.h

Summary

Member Variables

NameDescription
uint8_t commandDescriptorBlock[SCSIPERIPHERAL_MAX_CMD_DESC_BLOCK_LEN]Command descriptor block.
uint8_t cdbLengthLength of the command descriptor block.
int8_t dataTransferDirectionData transfer direction: –1 indicates no data transfer, –2 indicates data transfer (write) from the host to the device, –3 indicates data transfer (read) from the device to the host, and –4 indicates bidirectional data transfer.
ScsiPeripheral_DeviceMemMap* dataBuffer for data transmission.
uint32_t timeoutTimeout duration, in ms.

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