Re: [linux-usb-devel] Re: 2.6.15-rc5-mm1

Alan Stern
2005-12-13T15:35:24Z

On Tue, 13 Dec 2005, J.A. Magallon wrote:

> Bingo! This corrected the problem. I applied it to rc5-mm2 and booted nicely.
> One less bug.
>
> A side question. Are this messages dangerous ?
>
> hub 4-0:1.0: USB hub found
> hub 4-0:1.0: 2 ports detected
> ACPI: PCI Interrupt 0000:00:1d.7[D] -> GSI 23 (level, low) -> IRQ 19
> PCI: Setting latency timer of device 0000:00:1d.7 to 64
> ehci_hcd 0000:00:1d.7: EHCI Host Controller
> PCI: cache line size of 128 is not supported by device 0000:00:1d.7
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

I don't think that matters. It's more informational than a warning.

> ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 5
> ehci_hcd 0000:00:1d.7: irq 19, io mem 0xed200000
> ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
> usb 1-1: unable to read config index 0 descriptor/all
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> usb 1-1: can't read configurations, error -71
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

These messages indicate a real problem. The device plugged into your
first USB port didn't respond to a request. It might not matter though,
because the system will retry. If the device works then you don't need to
worry about it.

Alan Stern