>
> On Mon, Jul 5, 2010 at 8:14 PM, Aleš Nesrsta <
address@hidden> wrote:
> > On 07/02/2010 12:30 PM, jonatan perry wrote:
> > > Hi all,
> > > I am using grub2 uhci.c usb driver for testing new
> hardware, on some
> > > occuisions the UHCI signature test fails (can be found on
> the PCI
> > > iteration routine), the driver thest if the controller
> founded by PCI
> > > has a signature as uhci should have (0x0c0300), on some of
> my new
> > > hardwares the signature is as EHCI (usb 2.0) means
> 0x0c0302, if i
> > > change the signature that the driver searches the rest of
> the driver
> > > fails, probably because i need to activate a legacy bit in
> the
> > > configuration register in the EHCI Controller.
> > EHCI is never alone. It must always have a companion
> controller (UHCI or
> > OHCI). Also be sure to use either bzr trunk or usb branch.
>
>
> Note:
> Unfortunately, according to specification, EHCI can be
> installed alone
> (without companion UHCI or OHCI controller(s)) but it is
> probably very
> rare computer HW configuration.
> Try command "lspci" in Linux and search for lines with "USB
> Controller"
> - if You will find EHCI only, You really have "EHCI only"
> computer.
> But You can have some bad BIOS setting (You should enable USB
> 1.1
> controller(s) in BIOS.).
>
>
> > > i have searched EHCI Specs for legacy mode and could not
> understand
> > > how to configure legacy mode... and i hope some of you guy
> could help me.
> > >
> > > thanks!
> > >
> > >
> > > _______________________________________________
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> > >
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> > >
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> > >
> >
> >
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