Direct access to printerports

Direct access to printerports

[Hans Röcklinger]

Does any of you know anything about direct access to printer ports from 
dosemu? I have an eprom programmer (Needhams EMP20) that i whant to use 
under linux with either dosemu or cxoffice. As tested the program 
emp20.exe runs fine under dosemu but the access to the parallell port is 
not allowed. I've tried to set the $_port 0 "0x3bc" but that doesn't 
work. Do you think this is possible?

Regards
hans rocklinger
hans@rocklinger.se

Re: Direct access to printerports

[Uwe Bonnes]

>>>>> "Hans" == Hans Röcklinger <hans@rocklinger.se> writes:

    Hans> Does any of you know anything about direct access to printer ports
    Hans> from dosemu? I have an eprom programmer (Needhams EMP20) that i
    Hans> whant to use under linux with either dosemu or cxoffice. As tested
    Hans> the program emp20.exe runs fine under dosemu but the access to the
    Hans> parallell port is not allowed. I've tried to set the $_port 0
    Hans> "0x3bc" but that doesn't work. Do you think this is possible?

I once even made dosemu use the parport api. Suppused /dev/parport is
accessible by you as a user and the corresponding modules are loaded and the
config connects the right parport interface to the right address, you should
be able to run as user and access the port. However I have not run dosemu for
a long time, so I don't know about the present state. 
If you try to run the programm in wine/cxoffice and you find problems, first
run with WINEDEBUG=+int and ask me again with thw output of that programm.

Without the parport interface, you need to run as root for direct port
access.

-- 
Uwe Bonnes                bon@elektron.ikp.physik.tu-darmstadt.de

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------
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