maemo.org - Talk

maemo.org - Talk (https://talk.maemo.org/index.php)
-   Applications (https://talk.maemo.org/forumdisplay.php?f=41)
-   -   Detailed Battery Status? (https://talk.maemo.org/showthread.php?t=1932)

kutibah 2006-05-07 06:05

Detailed Battery Status?
 
Is there a GUI in the top that can give you a detailed status of the battery? For example, let's say I have 1 bar left, it would be helpful to know if I had 15 minutes of juice left or if I had 1 minute left.

Coolty 2006-05-07 06:16

hmm.. i have heard somewhere that linux isn't very good at power management for things like that...

Stickarm 2006-05-07 11:29

Quote:

Originally Posted by kutibah
Is there a GUI in the top that can give you a detailed status of the battery?

I've been wondering about this, too -- I guess I've been kind of spoiled by the Treo. Even if there is no GUI, I'd just like to get a more specific idea of the battery level

takumikai 2006-05-07 18:37

Maemo should think about the things that are most important in managing the Nokia 770 and making some changes that would be most useful to the user.

bhima 2006-05-07 21:36

Quote:

Originally Posted by Coolty
hmm.. i have heard somewhere that linux isn't very good at power management for things like that...

Getting _information_ about power usage is (theoretically) fairly easy. You need to know the current voltage of the battery, and the amount of power that's being used at a particular moment. You then average the power usage out over the last few minutes, normally.

You know that at a particular voltage, the thing will shut off. You also know that, when you're using a certain about of power, it will take a certain time to reach that voltage.

The _hard_ parts of power management are making drivers for hardware that can go away and come back cleanly - and that has been done very well on the 770. It generally has some of the best power management of any PDA out there.

I don't know if the 770 has good power measurement hardware. I suspect that it probably does. However, I don't think that Nokia currently lets developers get access to _any_ battery state information. Thus, what you want will be relatively easy to implement once Nokia opens up an API to read the info.

Until then, sorry, not much that developers can do.


All times are GMT. The time now is 02:06.

vBulletin® Version 3.8.8