Below are some tips and tricks for the Tizen platform OS, version 2.3 (should work on all versions up, including 3.0).
Get info about current battery capacity (charging level):
# cat /sys/class/power_supply/battery/capacity 100
The battery capacity should be between 1 and 100, min and max. You can find out all kind of information about the battery in your device, by cat-ing the files inside the /sys/class/power_supply/battery/ directory. For example:
# cat /sys/class/power_supply/battery/status Full
# echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
Or, if you want to preserve battery live at the expense of the performance, use this:
# echo ondemand > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
To find out the current governor CPU state, use:
# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
Format SD card
First, remove the initial vfat partition and create an ext3 one instead.
# parted /dev/mmcblk1 rm 1 # parted -a optimal /dev/mmcblk1 mkpart primary ext3 0% 100% # mkfs.ext3 /dev/mmcblk1p1
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