NG-SD-Plugins/PowerTools
NG-SD-Plugins/PowerTools
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Updated Equivalent Commands (markdown)

NGnius (Graham) 2023-02-11 16:48:19 +00:00
parent 4076fe9317
commit 572c12ae89
1 changed files with 20 additions and 2 deletions
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Equivalent-Commands.md

@ -9,6 +9,12 @@ Disable: `echo 0 > /sys/devices/system/cpu/cpu{cpu_number}/online` where `{cpu_n
NOTE: You cannot enable or disable cpu0, hence why there are only 7 in the range for 8 cpu threads.
# Enable & Disable CPU SMT
Enable: `echo on > /sys/devices/system/cpu/smt/control`.
Disable: `echo off > /sys/devices/system/cpu/smt/control`.
# Enable & Disable CPU boost
Enable: `echo 1 > /sys/devices/system/cpu/cpufreq/boost` enables boost across all threads.
@ -51,7 +57,7 @@ Read the actual fan RPM: `cat /sys/class/hwmon/hwmon5/fan1_input` gives the fan
NOTE: There's a bug in the fan controller; if you enable automatic fan control it will forget any previously-set target despite it appearing to be set correctly (i.e. `cat /sys/class/hwmon/hwmon5/fan1_target` will display the correct value).
When you disable automatic fan control, you will need to set the fan RPM again.
# Battery stats
# Get battery stats
Get the battery charge right now: `cat /sys/class/hwmon/hwmon2/device/charge_now` gives charge in uAh (uAh * 7.7/1000000 = charge in Wh).
@ -59,10 +65,22 @@ Get the maximum battery capacity: `cat /sys/class/hwmon/hwmon2/device/charge_ful
Get the design battery capacity: `cat /sys/class/hwmon/hwmon2/device/charge_full_design` gives charge in uAh.
Get whether the deck is plugged in: `cat /sys/class/hwmon/hwmon5/curr1_input` gives the charger current in mA.
Get battery current: `cat /sys/class/hwmon/hwmon5/curr1_input` gives the charger current in mA.
NOTE: 7.7 is the voltage of the battery -- it's not just a magic number.
# Set battery charge rate
Set the charge rate: `echo {rate} > /sys/class/hwmon/hwmon5/maximum_battery_charge_rate` where `{rate}` is the charge rate in mA, between 250 and 2500 mA.
That file is write only, so changes cannot be directly observed.
# Set battery charge mode
There exists a binary which may or may not be executable (depending on which SteamOS version) which can be used to set this and other things. [More details in the issue](https://github.com/NGnius/PowerTools/issues/50).
Refer to [util.rs](https://github.com/NGnius/PowerTools/blob/main/backend/src/settings/steam_deck/util.rs) for how the firmware interface works.
# Steam Deck kernel patches
This is how I figured out how the fan stuff works.