Files
oldlinux-files/docs/interrupts/int-html0/inte7wog.htm
2024-02-19 00:23:35 -05:00

58 lines
1.4 KiB
HTML

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<html>
<head>
<meta http-equiv="Content-Type"
content="text-html; charset=Windows-1252">
<title>INT 21,44,1 / IOCTL,1 - Set Device Information</title>
<meta name="FORMATTER" content="Microsoft FrontPage 2.0">
</head>
<body>
<h1><a name="kap_interrupt_2120"></a>INT 21,44,1 / IOCTL,1 - Set
Device Information</h1>
<p> AH = 44h</p>
<p> AL = 01</p>
<p> BX = handle</p>
<p> DH = must be zero</p>
<p> DL = device data low order byte (see below)</p>
<p> on return</p>
<p> AX = error code if CF set</p>
<p> DX = device information (see below)</p>
<p> - applicable to character devices only</p>
<p> - allows setting of device data word for character devices</p>
<p> - usually used to change from binary to translated I/O</p>
<p> - handle in BX must be an opened file or device</p>
<hr>
<table border="0" width="100%" cols="3">
<tr>
<td width="33%">Zurück zum <a href="inte1at0.htm">Interrupt
Info</a>. </td>
<td align="center" width="33%"><a
href="mailto:Roger.Morgan@htl-steyr.ac.at">Roger Morgan</a>
/ 1998 </td>
<td align="right" width="33%"><font size="1">L.Änderung <!--webbot
bot="Timestamp" s-type="EDITED" s-format="%d.%m.%y"
startspan -->29.03.99<!--webbot bot="Timestamp" endspan
i-checksum="13964" --> </font></td>
</tr>
</table>
</body>
</html>