Article View: comp.os.os2.programmer
Article #2159Re: access to i/o ports?
From: Barry King
Date: Sat, 26 Sep 1992 22:00
Date: Sat, 26 Sep 1992 22:00
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In a msg on <Sep 22 14:25>, Mark Saum of 42:1000/2 writes: -> What ports? If you mean the low-level I/O ports, you would need -> to run at ring 0 I believe. That means writing your own -> device driver. You can write 'normal' OS/2 programs with IOPL which gives the program code direct access to the hardware ports. C Set/2 does not include a function to write to the ports directly but MSC 6 does. Regards, Barry * Origin: The OS/2 Connection - Edmonton, Alberta, Canada (42:100/31)
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Path: arc1-ca.pugleaf.net!sparky!uunet!dtix!darwin.sura.net!wupost!micro-heart-of-gold.mit.edu!uw-beaver!ubc-cs!unixg.ubc.ca!kakwa.ucs.ualberta.ca!alberta!ugc!nebulus!ttlg!postmaster From: Barry.King@ttlg.UUCP (Barry King) Newsgroups: comp.os.os2.programmer Subject: Re: access to i/o ports? Message-ID: <717580774.0@ttlg.ttlg.UUCP> Date: 26 Sep 92 22:00:42 GMT Sender: postmaster@ttlg.UUCP Lines: 13