With updating the kernel to 6.6.31,The /sys/class/rtc/rtc0/wakealarm file disappeared.
I have also noticed the discussion on this issue. Indeed, after using alexandrebelloni/linux@7b6c32a patch and adding the wakeup-source property in the config.txt, the RTC alarm works fine in the kernel 6.6.21, but it still fail in the kernel 6.6.31.
It seems that the 6.6.31 kernel requires an additional patch.
I have also noticed the discussion on this issue. Indeed, after using alexandrebelloni/linux@7b6c32a patch and adding the wakeup-source property in the config.txt, the RTC alarm works fine in the kernel 6.6.21, but it still fail in the kernel 6.6.31.
It seems that the 6.6.31 kernel requires an additional patch.
Statistics: Posted by FrankLee — Mon Aug 26, 2024 2:44 am