I wanted to build something for my Pi, based on this behaviour I knew: after executing halt, shutdown -h now, or init 0, raspbian would blink the ACT led ten times then stay put. The plan was to build something to detect those 10 blinks with their timing too and cut the power.
However, my Raspberry doesn't do this anymore, when I execute "sudo halt", "sudo shutdown -h now" or "sudo init 0", it closes everything down as expected, then restarts. It doesn't do the blinking of ACT led neither.
I'd like to know if this is normal, was this intentionally changed in the newer kernels?
I mean, could it be that this has changed for me after an apt-get update & upgrade? (because I've issued these commands at a certain time, and also yesterday evening)
I've prepared a new SD card with the latest Raspbian available, but I'll have to wait until the evening to see if that works as expected.
I couldn't find any thread about this issue, so I've opened my own here.