Developer Documentation
PATH Hardware Documentation > Device Managers and Drivers > ATA Devices > ATA Device Software Guide


return drive characteristics

The return drive characteristics function returns information about the characteristics of the specified drive as defined in Inside Macintosh, Volume V. Additional informtion about the values returned by this call cam be found in Technote DV 525 at

<http://www.gemma.apple.com/dev/dev/technotes/dv/dv_525.html>


Parameter block

-->

csCode

A value of 23.
-->

ioVRefNum

The logical drive number.
-->

csParam[ ]

None defined.
<--

csParam[0-1]

Drive information.

$0601 = primary, fixed, SCSI, internal.

$0201 = primary, removable, SCSI, internal.
<--

ioResult

See result codes.
RESULT CODES

noErr

0 Successful completion, no error occurred

nsDrvErr

-56 The specified logical drive number does not exist

© 1999 Apple Computer, Inc. — (Last Updated 9 Mar 99)