Category: <b>disk I/O enhancements</b>
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<pre><b>INT 13 - SyQuest - START/STOP SCSI DISK</b>

	AH = 12h
	AL = subfunction
	    00h start disk
	    01h stop disk
	CX = wait flag
	    00h wait for ready
	    01h don't wait for ready
	DL = hard drive ID (bit 7 for hard disks must be set)
Return: CF set on error
	CF clear if successful
	AH = status
	    00h successful
	    01h invalid function request
	    80h timeout
SeeAlso: AH=12h"Future Domain",AH=13h"SyQuest"
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