Re: AIMS Labs radio card: frequency limit

Gerhard Mack (gmack@imag.net)
Sat, 16 Jan 1999 17:26:37 -0800 (PST)


What happens if an unattainable frequincy is attempted?
Anything to the card or will whoever is trying to find what they want
simply try another ?

Gerhard

On Fri, 15 Jan 1999, Russell Kroll wrote:

> > Probably a better choice would be for the kernel to assume that it
> > can, and report an error if the hardware says otherwise, at least as
> > far as that is possible...
>
> That assumes that the radio card is able to indicate that a frequency is
> unattainable. Unfortunately, when it comes to tuning, these things are
> pretty stupid and don't report much back. The aztech, aimslab, and cadet
> radio cards all suck down tuning bits but only the cadet will let you read
> them back.
>
> For most of these things, a human has to be in the loop doing experiments
> to figure out exactly what the limits are. There are also modifications
> possible to these cards that will alter the range, so a fixed value isn't
> always good either.
>
> I imagine that allowing "freqlow" and "freqhigh" as options for
> insmod/modprobe would allow users in various locations to try different
> frequencies to see what happens. This is obviously out of the question
> right now, so I will pursue it when 2.3 development starts. It keeps the
> idea of "let clued people change values" alive, which is always a good
> thing.
>
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--
gmack@imag.net

As a computer I find your faith in technology amusing.

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