[linrad] Re: Linrad 02.06a

[Ramiro Aceves <gmail.com; ea1abz@xxxxxxxxxxxxxxxx>]

> Linrad uses the parallel port to control the WSE hardware.
> For this reason one has to run Linrad as root, something 
> that also makes it easier to use svgalib.

Thanks, I shoud have read the manual.


> If you want to disable the parallel port reads and writes,
> set VALGRIND TRUE in vernr.h


Ok.

> I have now downloaded Sarge and it does not support my Delta44
> so I have to use the SCSI card in RDWR mode. This made me
> discover a bug in 06a (and a few earlier ones): Linrad closes
> the device before it stopped both input and output which
> causes segfaults. It has nothing to do with Sarge, I noticed
> because Sarge made me try RDWR which I had not done for quite 
> some time.........

Interesting. At least your 12 hours download worth the effort!
RDWR is the mode I use!

> Ramiro, since your hardware does not need the parallel
> port, you should make a users hwaredriver that does not
> offend your preferred mode of operation. That is another 
> way to disable parallel port access.
>
> Linrad 02-07 will (hopefully) give an error message rather
> than a segfault.....

Thank you very much Leif for the suggestions. I hope one day I can 
understand how Linrad works internally. Anyway, I am learning C reading 
your code under Vim editor and it is a very good learning experience. 
This editor is really efficient for jumping between function calls. ;-)


73
Ramiro.
EA1ABZ.


> 73
>
> Leif


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