Category: <b>serial I/O</b>
<p>
<pre><b>INT 14 - COMM-DRV v14.0 - TURN OFF DTR</b>

	AH = 88h
	DX = port number
Return: AH bit 7 set on error
	AH bit 7 clear if successful
Program: COMM-DRV is a universal serial communications driver by Willies'
	  Computer Software Company, which supports standard INT 14 and
	  FOSSIL calls as well as its own interfaces
SeeAlso: AX=8000h"COMM-DRV",AH=87h"COMM-DRV",AH=8Ah"COMM-DRV"
</pre>