Re: [PATCH] usb: add Freescale QE/CPM USB peripheral controller driver

Alan Stern
2008-08-28T20:16:26Z

On Thu, 28 Aug 2008, Scott Wood wrote:

> Alan Stern wrote:
> > This was done deliberately. The relevant standards state that a USB
> > device can have no more than one peripheral interface.
>
> Does building a kernel image that can run on different hardware without
> rebuilding also violate the "relevant standards"?

No. That isn't what Arnd was concerned about. He noted that even if
you did build multiple modules, only one of them could be loaded at any
time.

> And who's to say that there aren't multiple USB devices on a single
> board, that just happen to share a CPU and memory? :-)

That's why I don't fully support this decision. But I wanted to point
out that there _was_ a conscious decision, as opposed to bad
programming through sheer carelessness.

Alan Stern