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RE: charging attribute (was: Re: no longer possible to detect battery presence? RE: Battery API in Last Call)

From: Carr, Wayne <wayne.carr@intel.com>
Date: Mon, 5 Dec 2011 17:33:57 +0000
To: Anssi Kostiainen <anssi.kostiainen@nokia.com>, "public-device-status@w3.org" <public-device-status@w3.org>
Message-ID: <52F8A45B68FD784E8E4FEE4DA9C6E52A2404CEE8@ORSMSX102.amr.corp.intel.com>
That would do it.

>-----Original Message-----
>From: Anssi Kostiainen [mailto:anssi.kostiainen@nokia.com]
>Sent: Monday, December 05, 2011 3:57 AM
>To: public-device-status@w3.org
>Subject: charging attribute (was: Re: no longer possible to detect battery
>presence? RE: Battery API in Last Call)
>
>[ -cc public-device-apis ]
>
>On 3.12.2011, at 1.02, ext Mounir Lamouri wrote:
>
>> On 12/02/2011 07:15 PM, Carr, Wayne wrote:
>>>>> If you have a full battery and disconnect your power source,  the spec says
>to
>>>> report that the battery is charging --  even though it really is discharging.
>>>>
>>>> That is a bug in the specs and should be raised separately.
>>>
>>> The bug in the spec that makes it so it says charging when it is actually
>discharging, also seems to makes it so you can also always determine when a
>battery is in use. (either charging or discharging.
>>>
>>> Current text for charging attribute: "The attribute must be set to false if the
>battery is discharging, and set to true, if the battery is charging, full, the
>implementation is unable to report the state, or there is no battery attached to
>the system, or otherwise.
>>> No exceptions."
>>>
>>> Suggested text for charging attribute: "The attribute must be set to false if the
>battery is discharging, and set to true if the battery is charging.  Otherwise, the
>attribute is set to true if the battery is neither charging nor discharging or If the
>implementation is unable to report the state or there is no battery attached to
>the system. No exceptions."
>>
>> Seems reasonable to me. I guess theoretically a discharging battery can't be full
>but in practice, depending on the battery level precision, that could happen.
>
>Wouldn't dropping "full" from the true condition fix this. "Otherwise" will catch
>the case "neither charging nor discharging". My proposal:
>
>[[
>
>charging of type boolean, readonly
>
>Represents if the system's battery is charging. The attribute must be set to false if
>the battery is discharging, and set to true, if the battery is charging, the
>implementation is unable to report the state, or there is no battery attached to
>the system, or otherwise.
>
>]]
>
>-Anssi
Received on Monday, 5 December 2011 17:34:36 GMT

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