PTP for Arduino USB host shield - General Discussion and Assistance - CHDK Forum
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PTP for Arduino USB host shield

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Offline waterwingz

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PTP for Arduino USB host shield
« on: 03 / June / 2014, 11:17:45 »
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Not sure the best place to share this but this seems like a good bet ?

http://www.circuitsathome.com/camera-control/ptp-support-for-usb-host-shield-library-2-0-released
https://github.com/felis/PTP_2.0
WW
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Offline reyalp

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Re: PTP for Arduino USB host shield
« Reply #1 on: 03 / June / 2014, 22:51:23 »
Nice find, but I don't think it belongs in the chdkptp thread.
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Offline waterwingz

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Re: PTP for Arduino USB host shield
« Reply #2 on: 03 / June / 2014, 23:43:06 »
Thanks for moving it.  Reading the code and articles,  it seems to depend somewhat on earlier Canon P&S cameras where the PTP code had a lot more functionality.  Does that make sense?

So a "refresh" to make use of the things CHDK adds to the camera side of PTP might be in order?
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Offline reyalp

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Re: PTP for Arduino USB host shield
« Reply #3 on: 04 / June / 2014, 00:35:44 »
Quote from: waterwingz on 03 / June / 2014, 23:43:06
Thanks for moving it.  Reading the code and articles,  it seems to depend somewhat on earlier Canon P&S cameras where the PTP code had a lot more functionality.  Does that make sense?

So a "refresh" to make use of the things CHDK adds to the camera side of PTP might be in order?
canon stopped supporting remote control / shooting functionality in most of their P&S a long time ago.

The library doesn't seem to have any specific support for CHDK. Someone made a comment in 2012 about adding CHDK support, but from a brief look it doesn't seem like it went anywhere.

People should be able to use this library to call CHDK PTP extension functions without too much trouble. Someone could build a higher level CHDK library on that if they wanted.
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Offline waterwingz

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Re: PTP for Arduino USB host shield
« Reply #4 on: 04 / June / 2014, 00:46:03 »
Quote from: reyalp on 04 / June / 2014, 00:35:44
People should be able to use this library to call CHDK PTP extension functions without too much trouble. Someone could build a higher level CHDK library on that if they wanted.
You can now get a few nice USB host "shields" for about $20 to attach to a $10 Arduino card.   Makes for some interesting "advanced" USB remote possibilities.



(Although the guy who took this picture did not see a need to solder the two boards together  :P )
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