Alright! I’ve pushed an update to
fw-ectool that fixes reading mapped memory; now commands like
temps work properly.
$ ectool temps all --sensor name -------- temperature -------- fan speed -- F75303_Local 303 K (= 30 C) 0% F75303_CPU 303 K (= 30 C) 0% F75303_DDR 301 K (= 28 C) 0% Battery 296 K (= 23 C) 0% PECI 306 K (= 33 C) 0% $ ectool battery EC returned error result code 3 Battery info: OEM name: NVT Model number: Framewo Chemistry : LION Serial number: 00CD Design capacity: 3572 mAh Last full charge: 3560 mAh Design output voltage 15400 mV Cycle count 37 Present voltage 16625 mV Present current 0 mA Remaining capacity 2896 mAh Flags 0x0b AC_PRESENT BATT_PRESENT CHARGING
In addition, I’ve documented a few more host commands:
3E09 - Chassis Intrusion Data (more info)
This host command reports whether the chassis has ever been opened and if so, how many times.
Reports whether the chassis is open right now. Does not include historical data.
Returns the RPM of the system fan as a 32-bit integer:
3e04(...0 bytes...) Read 4 bytes ff 06 00 00 |....| #<< 1791 RPM
Operates very similarly to
pwmgetfanrpm 0, which returns
Fan 0 RPM: 1789
You can reboot the EC by holding power for 20 seconds. The charge LEDs will flash to indicate that you’ve done so.
Since I’m no longer on holiday from real life, updates are going to slow down… but I still hope to write a Windows driver/userland application pair that will let you control the charge limit (among other things) without getting your hands too dirty. We’ll see!