Objective Development Forums 2009-09-22T10:21:44+02:00 https://forums.obdev.at/app.php/feed/topic/3196 2009-09-22T10:21:44+02:00 2009-09-22T10:21:44+02:00 https://forums.obdev.at/viewtopic.php?t=3196&p=11049#p11049 <![CDATA[Re: 2 V-USB Devices merged to a Composite Device?]]>
Don't know whether you actually need a composite device, though. You can easily send your custom requests to a CDC (or whatever) class device and they will arrive in usbFunctionSetup(). Just make sure that your request IDs don't conflict with the class requests.

Statistics: Posted by christian — Tue Sep 22, 2009 10:21 am

]]> 2009-09-02T12:42:37+02:00 2009-09-02T12:42:37+02:00 https://forums.obdev.at/viewtopic.php?t=3196&p=10793#p10793 <![CDATA[2 V-USB Devices merged to a Composite Device?]]>
we got 2 V-USB driven USB-Devices, a CDC device and a costum device.
Our aim is now to get these two devices to one single composite device, but we actually don't have a real idea how :)

What we found out by now:
- We need to modify the descriptors to multiple interfaces
- We need to change the event-handler so the Packet with the right ID gets to the right Interface.

Now we have 2 problems:
- with the descriptor setting based on #define's i have no idea how to change the descriptor. Is there a way to change the descriptor directly? (well, beneath changing the lib itself ;) )

- the event-handler bases on USB_Poll, how do we get the right data to the right interface?

Maybe it should have been the first question, but is it possible using the V-USB library?
The Wiki doesn't even know the word "composite" :(

Any help will be appreciated,
Thanks,
Kai


*edit* and one more thing:
it is correct that combining them in a composite is the right way as we don't want to change ANYTHING on the drive for the costum device, is it?

Statistics: Posted by Kai.n — Wed Sep 02, 2009 12:42 pm

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