harmony 鸿蒙scsi_peripheral_api.h

2025-06-12
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scsi_peripheral_api.h

Overview

Declares the SCSI Peripheral DDK APIs used by the host to access the SCSI device.

File to include: <scsi_peripheral/scsi_peripheral_api.h>

Library: libscsi.z.so

System capability: SystemCapability.Driver.SCSI.Extension

Since: 18

Related module: SCSI Peripheral DDK

Summary

Function

Name	Description
int32_t OH_ScsiPeripheral_Init (void)	Initializes the SCSI Peripheral DDK.
int32_t OH_ScsiPeripheral_Release (void)	Releases the SCSI Peripheral DDK.
int32_t OH_ScsiPeripheral_Open (uint64_t deviceId, uint8_t interfaceIndex, ScsiPeripheral_Device **dev)	Opens the SCSI device specified by deviceId and interfaceIndex.
int32_t OH_ScsiPeripheral_Close (ScsiPeripheral_Device **dev)	Disables the SCSI device.
int32_t OH_ScsiPeripheral_TestUnitReady (ScsiPeripheral_Device dev, ScsiPeripheral_TestUnitReadyRequest request, ScsiPeripheral_Response *response)	Checks whether the logical units are ready.
int32_t OH_ScsiPeripheral_Inquiry (ScsiPeripheral_Device dev, ScsiPeripheral_InquiryRequest request, ScsiPeripheral_InquiryInfo inquiryInfo, ScsiPeripheral_Response response)	Queries basic information about the SCSI device.
int32_t OH_ScsiPeripheral_ReadCapacity10 (ScsiPeripheral_Device dev, ScsiPeripheral_ReadCapacityRequest request, ScsiPeripheral_CapacityInfo capacityInfo, ScsiPeripheral_Response response)	Obtains the capacity information about the SCSI device.
int32_t OH_ScsiPeripheral_RequestSense (ScsiPeripheral_Device dev, ScsiPeripheral_RequestSenseRequest request, ScsiPeripheral_Response *response)	Obtains sense data, that is, information returned by the SCSI device to the host to report the device status, error information, and diagnosis information.
int32_t OH_ScsiPeripheral_Read10 (ScsiPeripheral_Device dev, ScsiPeripheral_IORequest request, ScsiPeripheral_Response *response)	Reads data from a specified logical block.
int32_t OH_ScsiPeripheral_Write10 (ScsiPeripheral_Device dev, ScsiPeripheral_IORequest request, ScsiPeripheral_Response *response)	Writes data to a specified logical block of a device.
int32_t OH_ScsiPeripheral_Verify10 (ScsiPeripheral_Device dev, ScsiPeripheral_VerifyRequest request, ScsiPeripheral_Response *response)	Verifies a specified logical block.
int32_t OH_ScsiPeripheral_SendRequestByCdb (ScsiPeripheral_Device dev, ScsiPeripheral_Request request, ScsiPeripheral_Response *response)	Sends SCSI commands in CDB mode.
int32_t OH_ScsiPeripheral_CreateDeviceMemMap (ScsiPeripheral_Device dev, size_t size, ScsiPeripheral_DeviceMemMap *devMmap)	Creates a buffer. To avoid memory leakage, use OH_ScsiPeripheral_DestroyDeviceMemMap to destroy a buffer after use.
int32_t OH_ScsiPeripheral_DestroyDeviceMemMap (ScsiPeripheral_DeviceMemMap *devMmap)	Destroys a buffer. To avoid resource leakage, destroy a buffer in time after use.
int32_t OH_ScsiPeripheral_ParseBasicSenseInfo (uint8_t senseData, uint8_t senseDataLen, ScsiPeripheral_BasicSenseInfo senseInfo)	Parses basic sense data, including the Information, Command specific information, and Sense key specific fields.