Several hosted targets read their battery state from a fixed
sysfs path. Get rid of the duplicated code by handling this
common case in power-linux.c.
Some targets use non-standard units in sysfs instead of the
typical microvolts / microamps, so allow the scale factors
to be overridden by the target.
Change-Id: I31dc4ffc7a2d2c066d00a74070f9f9849c1663d0
Battery time estimation works now.
This commit also changes the mksquashfs path to FUNKEY_SDK_PATH.
Change-Id: Ic0aa4c40011b0716f1c36c014377eaccb486e841
A bit of context, this device is a clone of the FunKey-S with a different form factor, hardware is mostly identical, the relevant difference is it has audio out (via usb-c, adapter to 3.5mm is included), this is the reason why the FunKey-SDK is needed for bulding.
This port is based on the old SDL 1.2 code because the device doesn't have SDL2 support. Alongside what was supported in the SDL 1.2 builds this port supports battery level, charging status and backlight control.
Change-Id: I7fcb85be62748644b667c0efebabf59d6e9c5ade