[powerstation-owners] USB 2.0
Josh Boyer
jwboyer at linux.vnet.ibm.com
Tue Nov 25 04:37:20 MST 2008
On Mon, 24 Nov 2008 19:56:00 -0800
Greg KH <greg at kroah.com> wrote:
> On Mon, Nov 24, 2008 at 10:11:04PM -0500, Josh Boyer wrote:
> > On Mon, 24 Nov 2008 17:51:30 -0800
> > Greg KH <greg at kroah.com> wrote:
> >
> > > On Mon, Nov 24, 2008 at 02:47:48PM -0700, Kai Staats wrote:
> > > > All,
> > > >
> > > > Please provide the make and model of any/all USB 2.0 cards you have enabled
> > > > with a PowerStation. We are compiling a list and testing all units in-house.
> > >
> > > Why should this matter? Any PCI device should "just work" properly.
> > > It's up to the operating system to handle this, why would the firmware
> > > care what type of PCI device is plugged into the system?
> > >
> > > What is the real problem here?
> >
> > It never gets to the OS because the firmware explodes.
>
> But again, why would the firmware care what type of PCI device is
> attached? It just needs to tell the OS that a PCI device is attached,
> and here's the resources assigned to it (well, it needs to give the OS a
> way to get the resources assigned to it, in some way.)
You're asking wonderful questions. I don't have the answers to them at
all, but it basically boils down to:
The firmware is buggy.
> So why would a USB controller be any different from any other type of
> PCI device? Should we start plugging in all PCI devices that we own to
> see what works and doesn't?
I don't think it does. I think it has to do with the slots. So yeah,
that might be helpful to a degree.
josh
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