On Thu, 27 Feb 2014, Dan Williams wrote:
> > BTW, after some more thought, I decided the right way to avoid races in
> > the peer assignments is to do some of the work under hub.c's
> > device_state_lock. Add a "usb_" prefix to the name and share it with
> > port.c. We already are guaranteed tha
On Thu, Feb 27, 2014 at 10:48 AM, Alan Stern wrote:
> On Thu, 27 Feb 2014, Dan Williams wrote:
>
>> > If the port's ACPI data agrees with the default matching, there's no
>> > issue. But if they disagree, don't accept the default match. That way
>> > you never have to correct a mistaken match.
>
On Thu, 27 Feb 2014, Dan Williams wrote:
> > If the port's ACPI data agrees with the default matching, there's no
> > issue. But if they disagree, don't accept the default match. That way
> > you never have to correct a mistaken match.
>
> So it turns out this simplifies the patch a bit, by get
On Wed, Feb 26, 2014 at 2:07 PM, Alan Stern wrote:
> On Wed, 26 Feb 2014, Dan Williams wrote:
>
>> > I've been thinking about this. Maybe it isn't a problem, because now
>> > you don't set up the peer matching until after the port has been
>> > registered. All you have to do is allow the ACPI da
On Wed, 26 Feb 2014, Dan Williams wrote:
> > I've been thinking about this. Maybe it isn't a problem, because now
> > you don't set up the peer matching until after the port has been
> > registered. All you have to do is allow the ACPI data to prevent a
> > default match if the location data val
On Wed, Feb 26, 2014 at 1:35 PM, Alan Stern wrote:
> On Fri, 21 Feb 2014, Dan Williams wrote:
>
>> ACPI identifies peer ports by setting their 'group_token' and
>> 'group_position' _PLD data to the same value. If a platform has tier
>> mismatch [1] , ACPI can override the default (USB3 defined) p
On Fri, 21 Feb 2014, Dan Williams wrote:
> ACPI identifies peer ports by setting their 'group_token' and
> 'group_position' _PLD data to the same value. If a platform has tier
> mismatch [1] , ACPI can override the default (USB3 defined) peer port
> association for internal hubs. External hubs f
ACPI identifies peer ports by setting their 'group_token' and
'group_position' _PLD data to the same value. If a platform has tier
mismatch [1] , ACPI can override the default (USB3 defined) peer port
association for internal hubs. External hubs follow the default peer
association scheme.
Locati
