Re: Can't access I/O ports with dosemu 1.0.2

[Stas Sergeev <stssppnn@yahoo.com>]

Hello.

Brad Rodriguez wrote:
> I tried changing the ownership of the executable, and giving it setuid
> status, but that didn't work.  I tried running it as the root user; but 
> that wasn't allowed (I got a message saying I have to run as normal 
> user). 
Upgrade your dosemu.

> $_ports = "range 0x2f8,0x2ff range 0x320,0x327 range 0x378,0x37f range
> 0x3f8,0x3ff"
If any of that range is listed in
/proc/ioports, then dosemu will not
allow its usage to avoid the conflicts.
So you have to disable the in-kernel
support for that devices.

> The software I'm using requires direct hardware access to the LPT1
Yes, LPT is a weak part of dosemu unless
you do a simple printing.

> COM1, and COM2 ports
Why would the one require a direct
access to the COM ports? The support
for those is fairly complete under
dosemu.

> Are there some simple diagnostics that I can 
> perform to tell me if DOSEMU is configured properly?
-D9+Tci log would do.