Hi, Yes, looks like it is almost impossible to measure without external h/w.
Meanwhile, you can have a look at the sysfs interfaces in your device: cd /sys/class/power_supply/*_battery/ grep . * [it is grep space dot space star] This will give you a list of attributes the kernel driver (for whatever chip it is) supports. Thanks, Durga On Sun, Oct 28, 2012 at 5:45 PM, Rodrigo Terra <[email protected]>wrote: > Hi everybody, > > I'm newbie in this list and I'll be really thankfull for some help to > double check a point. I'm current developing an experiment to evaluate > impacting Android energy consumption changing kernel scheduler. My choice > of model to conduct the experiment was google flagship Galaxy Nexus, and > unfortunatelly seems to be proving be a silly choice. Although Galaxy Nexus > use a Texas TWL6030 that has all that I need to precise measure current > using him as gas gauge, it isn't implemented in kernel, and worse than that > current sense resistor seems to be not solder in Samsung tuna board. Galaxy > Nexus rely on Max17040 to calc battery remain life, but max17040 use only > voltage measure, then my questions is: > > > - Is it really true that I can't get a reliable instantaneous read for > battery current in Galaxy Nexus, using TWL6030 or any other method, besides > external hardware measure ? > > > Thanks in advance for the confirmation, > Best Regards Rodrigo > > -- > unsubscribe: [email protected] > website: http://groups.google.com/group/android-kernel -- Regards Durgadoss -- unsubscribe: [email protected] website: http://groups.google.com/group/android-kernel
