IOBDMedia

Inherits from
IOMedia
Availability
Available in OS X v10.6 and later.
Declared in
IOBDMedia.h

Overview

The IOBDMedia class is a random-access disk device abstraction for BDs.

The IOBDMedia class is a random-access disk device abstraction for BDs.

Tasks

Miscellaneous

Instance Methods

getSpeed

virtual IOReturn getSpeed( UInt16 *kilobytesPerSecond);
Parameters
kilobytesPerSecond

Returns the current speed used for data transfers, in kB/s.

kBDSpeedMin specifies the minimum speed for all BD media (1X). kBDSpeedMax specifies the maximum speed supported in hardware.

Return Value

Returns the status of the operation.

Discussion

Get the current speed used for data transfers.

readDiscInfo

virtual IOReturn readDiscInfo( IOMemoryDescriptor *buffer, UInt8 type, UInt16 *actualByteCount );
Parameters
buffer

Buffer for the data transfer. The size of the buffer implies the size of the data transfer.

type

Reserved for future use. Set to zero.

actualByteCount

Returns the actual number of bytes transferred in the data transfer.

Return Value

Returns the status of the data transfer.

Discussion

Issue an MMC READ DISC INFORMATION command.

readStructure

virtual IOReturn readStructure( IOMemoryDescriptor *buffer, UInt8 format, UInt32 address, UInt8 layer, UInt8 grantID );
Parameters
buffer

Buffer for the data transfer. The size of the buffer implies the size of the data transfer.

format

As documented by MMC.

address

As documented by MMC.

layer

As documented by MMC.

grantID

As documented by MMC.

Return Value

Returns the status of the data transfer.

Discussion

Issue an MMC READ DISC STRUCTURE command.

readTrackInfo

virtual IOReturn readTrackInfo( IOMemoryDescriptor *buffer, UInt32 address, UInt8 addressType, UInt8 open, UInt16 *actualByteCount );
Parameters
buffer

Buffer for the data transfer. The size of the buffer implies the size of the data transfer.

address

As documented by MMC.

addressType

As documented by MMC.

open

Reserved for future use. Set to zero.

actualByteCount

Returns the actual number of bytes transferred in the data transfer.

Return Value

Returns the status of the data transfer.

Discussion

Issue an MMC READ TRACK INFORMATION command.

reportKey

virtual IOReturn reportKey( IOMemoryDescriptor *buffer, UInt8 keyClass, UInt32 address, UInt8 grantID, UInt8 format );
Parameters
buffer

Buffer for the data transfer. The size of the buffer implies the size of the data transfer.

keyClass

As documented by MMC.

address

As documented by MMC.

grantID

As documented by MMC.

format

As documented by MMC.

Return Value

Returns the status of the data transfer.

Discussion

Issue an MMC REPORT KEY command.

sendKey

virtual IOReturn sendKey( IOMemoryDescriptor *buffer, UInt8 keyClass, UInt8 grantID, UInt8 format );
Parameters
buffer

Buffer for the data transfer. The size of the buffer implies the size of the data transfer.

keyClass

As documented by MMC.

grantID

As documented by MMC.

format

As documented by MMC.

Return Value

Returns the status of the data transfer.

Discussion

Issue an MMC SEND KEY command.

setSpeed

virtual IOReturn setSpeed( UInt16 kilobytesPerSecond);
Parameters
kilobytesPerSecond

Speed to be used for data transfers, in kB/s.

kBDSpeedMin specifies the minimum speed for all BD media (1X). kBDSpeedMax specifies the maximum speed supported in hardware.

Return Value

Returns the status of the operation.

Discussion

Set the speed to be used for data transfers.

splitTrack

virtual IOReturn splitTrack( UInt32 address);
Parameters
address

As documented by MMC.

Return Value

Returns the status of the operation.

Discussion

Issue an MMC RESERVE TRACK command with the ARSV bit.