Hello all,
I want to measure the temperature of the AM5728 because the box surrounding it seems to become much to heat.
cat /sys/class/thermal/thermal_zone0/temp -->
cat: read error: Invalid argument
There ist no thermal zone with type "cpu_thermal":
cat /sys/class/thermal/thermal_zone*/type -->
gpu_thermal
core_thermal
dspeve_thermal
iva_thermal
cat /sys/class/thermal/thermal_zone0/temp -->
cat: read error: Invalid argument
cat: read error: Invalid argument
cat: read error: Invalid argument
cat: read error: Invalid argument
ls -la /sys/class/thermal
total 0
drwxr-xr-x 2 root root 0 Jan 1 1970 .
drwxr-xr-x 54 root root 0 Jan 1 1970 ..
lrwxrwxrwx 1 root root 0 Jan 1 1970 cooling_device0 -> ../../devices/virtual/thermal/cooling_device0
lrwxrwxrwx 1 root root 0 Jan 1 1970 thermal_zone0 -> ../../devices/virtual/thermal/thermal_zone0
lrwxrwxrwx 1 root root 0 Jan 1 1970 thermal_zone1 -> ../../devices/virtual/thermal/thermal_zone1
lrwxrwxrwx 1 root root 0 Jan 1 1970 thermal_zone2 -> ../../devices/virtual/thermal/thermal_zone2
lrwxrwxrwx 1 root root 0 Jan 1 1970 thermal_zone3 -> ../../devices/virtual/thermal/thermal_zone3
dmesd|grep thermal -->
[ 0.501785] failed to build thermal zone cpu_thermal: -2
[ 1.651334] ti-soc-thermal 4a0021e0.bandgap: thermal zone device is NULL
[ 1.978391] ti-soc-thermal 4a0021e0.bandgap: thermal zone device is NULL
[ 2.151522] ti-soc-thermal 4a0021e0.bandgap: thermal zone device is NULL
...
[ 93.966766] ti-soc-thermal 4a0021e0.bandgap: thermal zone device is NULL
It looks like the thermal zone with type "cpu_thermal" was never created, but why?
I used buildroot to create the kernel and other components.
Any idea? Any help is appreciated.
Regards,
Ralph