Re: [Qce-ga-devel] Assumption in quickcam.c?

[Jean-frederic C. <jf...@si...>]

Ok, I have increased the buffer (Note the snprintf cannot be used because it is
unresolved).

Rogier Wolff wrote:

> Jean-frederic Clere wrote:
> > > As I get some stuff done I will put a small sanity check around it.
> > > If we do get more that the allocated amount, then bad luck :).
> >
> > Actualy the quickcam needs most of the USB bandwith: To run 2 quickcams I need
> > 2 boards... 10 quickcams would be 10 boards it does not sounds realistic.
> > Anyway it costs nothing to use snprintf() instead sprintf(). (It prevents the
> > oops if any).
>
> What would YOU want to do with 10 quickcams? I'd want to have one in
> every corner of my place and take one pic every second with each of
> them.
>
> One QC does 30 frames per second, so 10 should be able to take one
> each, allowing for a factor of 3 of "ineffciency".
>
> To be able to montitor the whole museum, I may want to take a picture
> every 5 secs with over 100 of these cameras. I may buy an industrial
> PC and put 15 PCI USB adapters in there. That would give me 30 times
> 11 mbps, right? So at 10 cams per USB port, I'd be able to connect
> around 300 cams....  So we'd be running out of minors before hitting
> the limit.
>
> My recommendation: Allocate enough space for an unbelievable amount of
> cams. It will one day save some soul with an odd project quite some
> headaches...
>
>                         Roger.
>
> --
> ** R.E.Wolff@BitWizard.nl ** http://www.BitWizard.nl/ ** +31-15-2137555 **
> *-- BitWizard writes Linux device drivers for any device you may have! --*
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