(cc linux-usb-devel)
Michael Thonke <[email protected]> wrote:
>
> Hello Andrew,
>
> the ACPI bug or the problems with 2.6.13-rc3-mm[2,3] gone.
> The system boots now noiseless, except on problem with USB.
>
> If my Prolific USB-Serialadapter plugged in on reboot
> the ehci_hcd driver complains about a Hand-off bug in Bios.
>
> -> snip
>
> ehci_hcd 0000:00:1d.7: EHCI Host Controller
>
> ehci_hcd 0000:00:1d.7: debug port 1
>
> ehci_hcd 0000:00:1d.7: BIOS handoff failed (104, 01010001)
>
> ehci_hcd 0000:00:1d.7: continuing after BIOS bug...
>
> ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 1
>
> ehci_hcd 0000:00:1d.7: irq 161, io mem 0xd2dffc00
>
> -> snip
>
>
> I wonder about this because all other USB devices working without this
> message on boot.
>
> USB Mouse,Keyboard and USB Storage and all mixed from USB 1.1 and 2.
>
> When I rebooted without plugged Prolific Adapter and plug them in the
> same port
> the kernel prints this message.
>
> ->snip
>
> usb 4-1: new full speed USB device using uhci_hcd and address 2
>
> pl2303 4-1:1.0: PL-2303 converter detected
>
> usb 4-1: PL-2303 converter now attached to ttyUSB0
>
> -> snip
>
>
> Any Ideas what could be wrong here?
Nope. Can you identify the most recent kernel which didn't have these
problems?
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