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Re: Acquiring Dental RVG on Linux

Am Sonntag, 13. Dezember 2020, 13:54:22 CET schrieb Sonali Warunjikar:

> On Sun, Dec 13, 2020 at 12:51:34PM +0100, Sebastian Hilbert wrote:

> > Have you asked the manufacturer for information on using this as a twain

> > device ?

> I thought I replied to that. This product's pages open only in German even

> if I search on the English site. So could not find where to ask.


> For the encouraging words, thanks. I'll keep it up.


> As I mentioned the glaring gaps between wireshark and usbmon and quality

> issues with the former are disappointing and so is the word length limit

> in usbmon.


> Next time I take this up, I'd use the binary interface of usbmon to get

> more reliable (hopefully) and complete data - probably next weekend.


> Also, will try and call ioctl directly in C when experimenting to avoid

> any possibility of pyusb doing something wrong (this is not meant to

> suspect so, just reducing the layers in between to reduce things that can

> possibly hinder something).


> Will try and ask on sane mailing lists in the meantime. Thanks for the

> suggestion and all other pointers.


If you want to try talking to the device look at




Would be interesting to see if you can replay a captured USB session.


I wonder how you would be able to see that something is happening. Is there an LED that provides feeback ?


In the worst case it does something (capture an image) but you will not notice. I guess it would return raw image data but there is no process to receive it.


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