harmony 鸿蒙ScsiPeripheral_IORequest
ScsiPeripheral_IORequest
Overview
Defines the read/write operation request.
Since: 18
Related module: SCSI Peripheral DDK
Header file: scsi_peripheral_types.h
Summary
Member Variables
| Name | Description |
|---|---|
| uint32_t lbAddress | Start address of a logical block. |
| uint16_t transferLength | Number of consecutive logical blocks to be operated. |
| uint8_t control | Control field used to specify control information. |
| uint8_t byte1 | First byte of the CDB. |
| uint8_t byte6 | Sixth byte of the CDB. |
| ScsiPeripheral_DeviceMemMap * data | Buffer for data transmission. |
| uint32_t timeout | Timeout duration, in ms. |
Member Variable Description
byte1
uint8_t ScsiPeripheral_IORequest::byte1
Description
First byte of the CDB.
byte6
uint8_t ScsiPeripheral_IORequest::byte6
Description
Sixth byte of the CDB.
control
uint8_t ScsiPeripheral_IORequest::control
Description
Control field used to specify control information.
data
ScsiPeripheral_DeviceMemMap* ScsiPeripheral_IORequest::data
Description
Buffer for data transmission.
lbAddress
uint32_t ScsiPeripheral_IORequest::lbAddress
Description
Start address of a logical block.
timeout
uint32_t ScsiPeripheral_IORequest::timeout
Description
Timeout duration, in ms.
transferLength
uint16_t ScsiPeripheral_IORequest::transferLength
Description
Number of consecutive logical blocks to be operated.
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