From: Kalle Valo <kvalo@adurom.com>
To: Julian Calaby <julian.calaby@gmail.com>
Cc: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>,
	linux-wireless@vger.kernel.org
Subject: Re: Q: how to update platform power state for the network driver
References: <6929081.7c7blFVDp4@lx-vladimir> <1363680.r8KF83dygC@lx-vladimir>
	<CAGRGNgVUq=8H-r=tA3W5ojyfWPfPt8YHB2zDVpK5EWeF-=5unw@mail.gmail.com>
Date: Mon, 14 Jan 2013 09:07:36 +0200
In-Reply-To: <CAGRGNgVUq=8H-r=tA3W5ojyfWPfPt8YHB2zDVpK5EWeF-=5unw@mail.gmail.com>
	(Julian Calaby's message of "Fri, 11 Jan 2013 11:45:43 +1100")
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Sender: linux-wireless-owner@vger.kernel.org

Julian Calaby <julian.calaby@gmail.com> writes:

>> #include <linux/power_supply.h>
>> int power_supply_is_system_supplied(void);
>>
>> returns:
>> positive if system is AC supplied,
>> 0 if battery supplied
>> negative on error
>
> One minor point: you might want to add the ability to override this,
> even if it's only through debugfs so that people testing the code, or
> with unusual requirements can set this how they want / need it.

I'm also worried that this power_supply interface is not supported in
all platforms. Does anyone know how widely it's used?

-- 
Kalle Valo