Re: [e-users] Battery Module Not Working on Tablet

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On Wed, 22 Jun 2011 09:03:16 -0500 Jeff Hoogland <JeffHoogland@Linux.com> said:

try update. tested with your bat dir content. works for me. only issue it
SHOULd have had are

1. if you didnt set it to use internal battery reading sutff and
2. it'd have used voltage to guess rather than capacity. i made it prefer
capacity if given and the only method it can use is voltage as voltage is not
very accurate a measure of battery capacity (its not linear)

> Files + contents from battery directory:
> 
> capacity - 93 (currently unplugged - I'm guessing this is how much battery
> it has)
> charge_now - 0
> health - Unknown
> present - 1
> status - Discharging
> technology - Li-poly
> temp - 230
> type - Battery*
> uevent -
> POWER_SUPPLY_NAME=battery
> POWER_SUPPLY_TYPE=Battery
> POWER_SUPPLY_STATUS=Discharging
> POWER_SUPPLY_PRESENT=1
> POWER_SUPPLY_CAPACITY=93*
> voltage_avg - 4002
> voltage_max_design - 4200
> voltage_min_design - 3500
> voltage_now - 4002
> 
> On Wed, Jun 22, 2011 at 1:30 AM, Carsten Haitzler <ra...@ra...>wrote:
> 
> > On Tue, 21 Jun 2011 22:46:09 -0500 Jeff Hoogland <JeffHoogland@Linux.com>
> > said:
> >
> > > I saw you uploaded an SVN commit with a comment for me to try it this
> > > evening - built it up and still no dice :-/
> > >
> > > Anywho - /sys/class/power_supply/*/type
> > >
> > > There are three things there - ac, battery, and usb.
> > >
> > > ac says "Mains"
> > > battery says "Battery"
> > > and
> > > usb says "USB"
> > >
> > > Anything else I can provide to help?
> >
> > the actual content of all the files in battery/*
> > (cat capacity; cat xxxx;) so i can see which files have what content.
> >
> > > On 6/21/11, Jeff Hoogland <jef...@gm...> wrote:
> > > > I'll post the output of the
> > > >
> > > > /sys/class/power_supply/*/type
> > > >
> > > > This evening when I get home - is there anything else you need?
> > > >
> > > > Also I forgot to mention - the gadget is broken 100 percent. On udev
> > when
> > > > plugged in the battery shows green, when I unplug the coord it drops to
> > the
> > > > "low" battery sign.
> > > >
> > > > On Tue Jun 21 2011 09:34:28 AM EDT, Carsten Haitzler <
> > ra...@ra...>
> > > > wrote:
> > > >
> > > >> On Mon, 20 Jun 2011 12:07:16 -0500 Jeff Hoogland
> > > >> <JeffHoogland@Linux.com> said:
> > > >>
> > > >> you'll need more debuging.
> > > >>
> > > >> first.. e's own batget scans the whole /sys/class/power_supply/ dir
> > and
> > > >> looks for ALL things that have the "type" file say "Battery" so what
> > > >> does type say?:
> > > >>
> > > >> /sys/class/power_supply/*/type
> > > >>
> > > >> ? then it checks for lots of other info to see that its correct. if it
> > > >> doesnt say its a battery you already fail at step 1.
> > > >>
> > > >> now.. does "present" say "1"? ie "it's present" ? in fact it simply
> > has
> > > >> to say some number OTHER than 0. does it? look at batget.c.. i can go
> > > >> read out al lthe logic to you from there... but just look at
> > > >> linux_sys_class_power_supply_sysev_init() and
> > > >> linux_sys_class_power_supply_check ().
> > > >>
> > > >> other than that... looks like you have something that provides only
> > > >> charge_now and no other charge info (like charge_full and
> > > >> charge_full_design). so if its getting past the is battery and present
> > > >> checks... its going to have to choose to use current, voltage, energy
> > or
> > > >> charge modes to determine capacity. it seems you have some voltage
> > info
> > > >> like voltage_avg and voltage_max_design and voltage_now. batget is
> > > >> expecting volate_full or voltage_full_design... actually having a look
> > > >> at some docs this seems wrong. it should look for voltage_max not
> > > >> voltage_full
> > > >>
> > > >> but since it wouldnt get the basis right.. the capacity fallback thing
> > > >> doesnt quite work... :) i can fix it.. but cant test it. see svn
> > commit
> > > >> to bat.
> > > >>
> > > >> > So the E battery module is not working with my tablet computer. This
> > > >> > little hack does show power correctly though:
> > > >> >
> > > >> > http://dev.openaos.org/wiki/Debian%20gen8#a10Batterymonitor
> > > >> >
> > > >> > I've tried automatic, internal, and udev - they all fail. Did some
> > > >> > debugging with devilhorns and here are the contents of my system
> > power
> > > >> > directories:
> > > >> >
> > > >> > *root@archosgen8:/media/sda5/Bodhi/e17_debs/20110620# ls
> > > >> > /sys/class/power_supply
> > > >> > ac   battery   usb
> > > >> > root@archosgen8:/media/sda5/Bodhi/e17_debs/20110620# ls
> > > >> > /sys/class/power_supply/battery
> > > >> > capacity       device   power       status       technology   type
> > > >> > voltage_avg
> > > >> > voltage_min_design
> > > >> > charge_now   health   present   subsystem       temp
> > > >> > uevent
> > > >> > voltage_max_design       voltage_now
> > > >> > *
> > > >> > Any help/input would be awesome.
> > > >> > --
> > > >> > ~Jeff Hoogland <http://jeffhoogland.com/>
> > > >> > Thoughts on Technology <http://jeffhoogland.blogspot.com/>, Tech
> > Blog
> > > >> > Bodhi Linux <http://bodhilinux.com/>, Enlightenment for your
> > Desktop
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> > > >> --
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> > --------------
> > > >> The Rasterman (Carsten Haitzler)       ra...@ra...
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> 
> 
> -- 
> ~Jeff Hoogland <http://jeffhoogland.com/>
> Thoughts on Technology <http://jeffhoogland.blogspot.com/>, Tech Blog
> Bodhi Linux <http://bodhilinux.com/>, Enlightenment for your Desktop

-- 
------------- Codito, ergo sum - "I code, therefore I am" --------------
The Rasterman (Carsten Haitzler)    ra...@ra...