Inside Macintosh: Devices /

Chapter 3 - SCSI Manager / SCSI Manager Reference

SCSI Manager Routines /

SCSIWrite

You can use the SCSIWrite function to write to a SCSI device using a polled transfer.

FUNCTION SCSIWrite (tibPtr: Ptr): OSErr;

tibPtr

A pointer to an array of TIB instructions.

DESCRIPTION

The SCSIWrite function transfers data to the previously selected target device. The data transfer instructions are specified by the TIB array pointed to by the tibPtr parameter.

ASSEMBLY-LANGUAGE INFORMATION

The trap macro and routine selector for SCSIWrite are

Trap macro	Selector
_SCSIDispatch	$0006

RESULT CODES

noErr	0	No error
scCommErr	2	Communications error, operation timeout
scBadParmsErr	4	Unrecognized TIB instruction
scPhaseErr	X	Phase error on the SCSI bus

SEE ALSO

See "Using CDB and TIB Structures," beginning on page 3-17, for information about using TIB instructions. See "SCSI Manager TIB Instructions," beginning on page 3-27, for details of the TIB instruction set.