Re: Linux 3.8 broken for MacBookAir5,1

[Alan Stern]

On Sun, 10 Feb 2013, Otavio Salvador wrote:

> On Sun, Feb 10, 2013 at 12:47 PM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:
> > On Sun, 10 Feb 2013, Otavio Salvador wrote:
> >> I do have EHCI and PCI enabled so it should be working. Any clue about
> >> why it breaks it?
> >
> > Perhaps your system is not loading the new ehci-pci kernel module.
> 
> Yes; it should be the cause as building it built-in makes it work.
> However it is a regression from my point of view.
> 
> Those are the controllers I have in my system:
> 
> 00:14.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series
> Chipset Family USB xHCI Host Controller [8086:1e31] (rev 04)
> 00:1a.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series
> Chipset Family USB Enhanced Host Controller #2 [8086:1e2d] (rev 04)
> 00:1d.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series
> Chipset Family USB Enhanced Host Controller #1 [8086:1e26] (rev 04)
> 
> I thought the ehci-pci module would be load for every ehci PCI; What
> do you think?

The kernel can't guarantee anything about what driver modules are 
loaded.  That's up to userspace.  In particular, the initramfs image 
must be set up properly (if that is where these modules are loaded 
from).

Alan Stern

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