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ELECOM 超冷卻 A4 冷台

the hit list, draw it , tags

mac software

important type for driver

IOReturn: IOKit/IOReturn.h

IOByteCount: IOKit/IOTypes.h

SCSITaskIdentifier: IOKit/scsi/SCSITask.h

IOBufferMemoryDescriptor: IOKit/IOBufferMemoryDescriptor.h

SCSI_Sense_Data: IOKit/scsi/SCSICmds_REQUEST_SENSE_Defs.h

UInt64: libkern/OSTypes.h

NULL: string.h

IO flow

AsyncReadWrite  -->  IssueRead  or IssueWrite

frequent include header in mac driver

string.h:   define NULL

IOKit/IOLib.h:   IOMalloc

IOMalloc

allocate memory in the driver

defined in  IOKit/IOLib.h

ioregistry

close it before unload driver because it may reference to the driver