Category: <b>disk I/O enhancements</b>
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<pre><b>INT 13 - HARD DISK - PS/1 and newer PS/2 - IDENTIFY DRIVE</b>

	AH = 25h
	DL = drive number (80h,81h)
	ES:BX-&gt; 512 byte buffer for reply packet
Return: CF clear if successful
	CF set on error
	AH = status (see <a href=../../it/34/2.html>#00234</a> at AH=01h)
	buffer filled with ATA/IDE-style drive information block (see <a href=../../it/67/2.html>#00267</a>)
Desc:	retrieves the 256 words of drive data stored on an IDE hard disk
Notes:	the byte at address 0040h:0074h is set to the status of the operation
	IBM officially classifies this function as optional
SeeAlso: AH=23h"PS/1"

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