Re: [PATCH] ACPI: update AC status before exporting it

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Hi,

On Wednesday 19 November 2008 02:27:53 Zhang Rui wrote:
> On Wed, 2008-11-19 at 09:24 +0800, Zhang, Rui wrote:
> > sometimes the AC status is not updated in time,
> > i.e. no AC event when AC is plugged/unplugged.
> > In this case, we need to update its status before exporting it.
> > http://bugzilla.kernel.org/show_bug.cgi?id=12035

This one is not mainline yet.
Has this been solved in another way?

Thanks,

      Thomas

> >
> > Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx>
> > CC: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
>
> Tested-by: Łukasz Wojdyła <lukaszwojdyla@xxxxxxxxx>
>
> > ---
> >  drivers/acpi/ac.c |    6 +++++-
> >  1 file changed, 5 insertions(+), 1 deletion(-)
> >
> > Index: linux-2.6/drivers/acpi/ac.c
> > ===================================================================
> > --- linux-2.6.orig/drivers/acpi/ac.c
> > +++ linux-2.6/drivers/acpi/ac.c
> > @@ -87,6 +87,7 @@ struct acpi_ac {
> >  	unsigned long long state;
> >  };
> >
> > +static int acpi_ac_get_state(struct acpi_ac *ac);
> >  #define to_acpi_ac(x) container_of(x, struct acpi_ac, charger);
> >
> >  #ifdef CONFIG_ACPI_PROCFS_POWER
> > @@ -103,15 +104,18 @@ static int get_ac_property(struct power_
> >  			   enum power_supply_property psp,
> >  			   union power_supply_propval *val)
> >  {
> > +	int result;
> >  	struct acpi_ac *ac = to_acpi_ac(psy);
> > +
> >  	switch (psp) {
> >  	case POWER_SUPPLY_PROP_ONLINE:
> > +		result = acpi_ac_get_state(ac);
> >  		val->intval = ac->state;
> >  		break;
> >  	default:
> >  		return -EINVAL;
> >  	}
> > -	return 0;
> > +	return result;
> >  }
> >
> >  static enum power_supply_property ac_props[] = {
>
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