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Re: [pwc] SPC900NC LED light stays on all the time.

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Subject: Re: [pwc] SPC900NC LED light stays on all the time.
From: Peter Baitz <>
Date: Thu, 21 Sep 2006 07:39:39 -0700 (PDT)
Hello Saillard.org pwc developers,

First I would like to say thank you for this project,
you probably don't know how may of us you have made
very happy supporting the ToUcam models on Linux. :)
But I would like you to know, not all of us are, or
can be developers with minds like yours to do this
detailed work.  But others of us are testers (you need
testers and installers). :)  So, in the spirit of
this, I am trying to give you feedback that there are
some applications where it is useful for the LED
on/off functionality to work, and thus far, the pwc
v10.0.12-rc1 does not allow it.  I used setpwc command
to set the LED light on/off times and cannot get it
set to anything but -1. One such applications is
support of Long eXposure hw modification to the
SPC900NC.  qAtrocam supports this and it works on the
ToUcam Pro, but the Pro III thus far is not shutting
off/on the LED.   Might you please consider adding LED
on/off function to the SPC900NC support?

I would most appreciate if you posted a reply - so far
I heard nothing, which is a little saddening.

Very Sincerely,

Peter B.


--- Peter Baitz <> wrote:

>
> Hello,
>
> I am using pwc-10.0.12-rc1 on RHEL WSv4 using
> SPC900NC
> (ToUcam Pro III) and I find that the LED light stays
> on all the time.  Is the power to this LED light
> supplied via function from the PWC driver?  Does the
> PWC driver supply the ability to shut it off and
> turn
> on the LED?  Or is this only from the video-capture
> software like qAstrocam
> (http://3demi.net/astro/qastrocam/doc/)?
>
> Reason I ask is because qAstroCam supports a
> LED-command-pin method of LX (long exposure) signal
> for SPC900NC with long exposure modification.  I am
> trying to find out about the LED light on/off
> beforehand.
>
> Thank you in advance for specific feedback you can
> give me on this.
>
> Peter
>
>
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