[Pkg-raspi-maintainers] RPi3 temperature / frequency readout?
Steffen Möller
steffen_moeller at gmx.de
Fri Jan 26 10:00:25 UTC 2018
Thank you for your quick reply, Michael. Is there anything how you
determine in software that the machine turns too hot because of
insufficient cooling and for that reason reduces its performance?
On 26.01.18 08:03, Michael Stapelberg wrote:
> There’s always the possibility that Raspbian uses a custom driver
> which isn’t yet upstreamed. I was never interested in these two
> numbers, so I can’t help, sorry.
>
> On Fri, Jan 26, 2018 at 12:11 AM, Steffen Möller
> <steffen_moeller at gmx.de <mailto:steffen_moeller at gmx.de>> wrote:
>
> Hello,
>
> can you please help with magic lines to learn about the
> temperature of the RPi3 and at what frequency the CPU is operating?
>
> This is apparently different from what Raspbian makes us expect. I
> am running your 20180108 buster image, i.e.
> CONFIG_THERMAL=y
> CONFIG_HWMON=y
> CONFIG_THERMAL_HWMON=y
>
> # find /sys -maxdepth 11 -name \*_input -o -name temp
> /sys/devices/virtual/thermal/thermal_zone0/temp
> # cat /sys/devices/virtual/thermal/thermal_zone0/temp
> cat: /sys/devices/virtual/thermal/thermal_zone0/temp: Invalid argument
> # ls /sys/devices/virtual/thermal/thermal_zone0/
> available_policies k_po passive
> subsystem/ trip_point_0_temp
> integral_cutoff k_pu policy sustainable_power
> trip_point_0_type
> k_d mode power/ temp
> type
> k_i offset slope trip_point_0_hyst
> uevent
>
> Cheers,
>
> Steffen
>
>
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>
>
> --
> Best regards,
> Michael
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