Inside Macintosh: Devices /

Chapter 6 - Power Manager / Power Manager Reference

Power Manager Dispatch Routines / Getting and Setting the SCSI ID

SetSCSIDiskModeAddress

You can use the SetSCSIDiskModeAddress function to set the SCSI ID for the computer to use in SCSI disk mode.

void SetSCSIDiskModeAddress(short scsiAddress);

scsiAddress

The SCSI ID that the computer uses if it is started up in SCSI disk mode. You must specify a value in the range of 1 to 6.

DESCRIPTION

The SetSCSIDiskModeAddress function sets the SCSI ID that the computer will use if it is started up in SCSI disk mode.

The value of scsiAddress must be in the range of 1 to 6. If any other value is given, the software sets the SCSI ID for SCSI disk mode to 2.

ASSEMBLY-LANGUAGE INFORMATION

The trap is _PowerMgrDispatch ($A09E). The selector value for SetSCSIDiskModeAddress is 21 ($15) in the low word of register D0. The SCSI ID to set is passed in the high word of register D0.

SEE ALSO

You can use the PMFeatures function (page 6-41) to determine whether the computer supports SCSI disk mode.