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Raspberry Pi OS • Re: Modify the Built in Fan Control

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Okay when i decompile the Device Overlay File, i will get these information:

Code:

cpu-tepid {                                        temperature = <0xc350>;                                        hysteresis = <0x1388>;                                        type = "active";                                        phandle = <0x03>;                                };                                cpu-warm {                                        temperature = <0xea60>;                                        hysteresis = <0x1388>;                                        type = "active";                                        phandle = <0x05>;                                };                                cpu-hot {                                        temperature = <0x107ac>;                                        hysteresis = <0x1388>;                                        type = "active";                                        phandle = <0x06>;                                };                                cpu-vhot {                                        temperature = <0x124f8>;                                        hysteresis = <0x1388>;                                        type = "active";                                        phandle = <0x07>;                                };
Now i change the value 0c350 (50000) to 9c40 (40000) and recompile them. Now the fan start spinning at 25% / 40 degrees and will starting go faster if the Temps higher :) Thanks for the links

May I ask whether you have recompiled the bcm2712-rpi-5-b.dts (I didn't find it under /boot/overlays), if not how would I go about updating the parameters, much thanks!

Statistics: Posted by beepboopwhystop — Sat Jan 06, 2024 3:09 am



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