LED blinking during suspend

Werner Almesberger werner at openmoko.org
Wed Dec 16 14:18:20 CET 2009

c_c wrote:
> If I set the LED light on, and suspend the phone - does it stay on
> automatically - or do I need more magic?

As far as the hardware is concerned, it will stay on.
I'm too lazy to check if the kernel will turn it off for you in
suspend :)

>   What about the current consumption?

About 5 mA per LED. About 50 mA per LED if the LED has the base
resistor problem. Normal suspend current with GSM on should be
somewhere around 8 mA, maybe a bit less. So the LED would take a
considerable bite out of that,

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