On Tue, 12 Jul 2005, Michel Bouissou wrote:
> > In case it's not already clear, when you install this patch the UHCI
> > controllers will not be useable.
>
> Okay, the patch applied easily and the kernel is now compiling. When
> installed, I'll try and boot it (and will use a PS/2 mouse instead of my
> current USB mouse, or should I rather try to plug my USB mouse to the
> ehci_hcd controller ?).
USB mice generally run at low speed. This means that you _can't_ plug it
into an EHCI controller -- the controller will see that it's not a
high-speed device and will hand it over to a companion controller, which
in your case will be UHCI.
> How would you like me to boot ? With or without the "usb-handoff" option ?
> With or without the BIOS "USB mouse support" option ?
Use "usb-handoff" and turn off BIOS USB mouse support.
> And once booted, what information will you be interested in ?
I'll be interested in seeing if you still get the "IRQ 21 nobody cared"
message.
Alan Stern
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