Thread (9 messages) 9 messages, 2 authors, 2018-07-05

Charge counter on droid 4

From: tony@atomide.com (Tony Lindgren)
Date: 2018-06-18 09:14:29
Also in: linux-omap, lkml

* Pavel Machek [off-list ref] [180618 07:43]:
So... there are mA, mAh values. Those come from hardware, and I
believe we should keep them.

But there are also mW, mWh values, which are synthetic. Userland can
compute them from mV, mA values... and it is confusing that kernel
provides them. (My tendency was to start computing these synthetic
values in userland, to compare them with "real hardware" values from
kernel. But then I looked at kernel implementation, and realized they
are synthetic, tooo...)
Hmm mWh value is based on the hardware sampled shunt
values and number of samples gathered between the
two readings. I'd rather call the calculated values
based on userland reading mV and mA values "synthetic" :)

Regards,

Tony
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