On Monday 04 April 2005 3:39 pm, James Lamanna wrote:
> I have some USB protocol questions about initial device setup.
> I'm trying to write my own USB stack for an Atmel AT43USB355E microcontroller
> (Atmel has a USB library but its binary only....).
> This chip has 3 Functional Endpoints and 2 Hub ports.
> I noticed on device plug-in the GET_DESCRIPTOR control message is showing up
> on the Hub endpoint 0 of the microcontroller, as opposed to function endpoint 
> 0.
> Is this always what happens when plugging in a device with a hub?
> Or is my hardware just weird?

I don't understand the question.  You've got Linux running on
that Atmel chip?  With only 24 KB of code, 1 KB data, on an 8 bit
AVR CPU??

This list as a resource for folk developing software with the
Linux-USB stack ... not as a general USB resource list.

That said ... with a composite device, the hub enumerates first,
before the attached peripheral.


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