Path: utzoo!utgpu!attcan!uunet!ncrlnk!ncr-sd!hp-sdd!megatek!spot!hollen
From: hollen@spot.megatek.uucp (Dion Hollenbeck)
Newsgroups: comp.sys.ibm.pc
Subject: Re: DOS device driver problem
Message-ID: <395@megatek.UUCP>
Date: 7 Nov 88 15:56:58 GMT
References: <712@inuxh.UUCP>
Sender: news@megatek.UUCP
Lines: 19

From article <712@inuxh.UUCP>, by blp@inuxh.UUCP (Bruce Paramore):
> I am having a problem with a DOS device driver I have written.  All it has
> to do for my present application is to write a byte to a register on a custom
> board.  This seems to work fine for all values except 0x1a (^Z).  I have
> written a small print routine to tell me when I enter my driver, and when
> I pass the 0x1a to DOS, my driver is not entered, and a value of 0 is
> returned for the bytes written.  I am using MS-DOS 3.3.
> 
DOS is looking at ^Z and saying "Oh, he means end of file, don't send
this".  You might be able to get around this by picking any other control
character (or maybe a sequence) and having your device driver translate
it into the register as ^Z, otherwise, DOS will continue to eat it for
you.

	Dion Hollenbeck             (619) 455-5590 x2814
	Megatek Corporation, 9645 Scranton Road, San Diego, CA  92121

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