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Re: USB Driver uhci.c legacy mode

From: Vladimir 'φ-coder/phcoder' Serbinenko
Subject: Re: USB Driver uhci.c legacy mode
Date: Fri, 02 Jul 2010 19:20:10 +0200
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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.
> 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!
> _______________________________________________
> Grub-devel mailing list
> address@hidden

Vladimir 'φ-coder/phcoder' Serbinenko

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