Heartbeat LED during init script

[Sascha Hauer]

On Wed, Feb 17, 2021 at 01:44:59PM +0100, barebox+mailing at cookiesoft.de wrote:
> Hey Sasha,
> 
> thanks for the answer.
> 
> > barebox doesn't support interrupts. LED blinking is done in pollers
> 
> That explains the obversation.
> 
> > add a ctrlc() call to your memtester code inside some loop.
> > That will cause the poller to run.
> 
> I'm not entirely sure, if I understand you correctly or you didn't understand me.
> 
> I use the memtest command[0] from barebox so there is nothing custom written or any loop that I can control.

Ok, somehow I thought you added some memtest code yourself. I was
mistaken.

> However, if I understand you correctly one could add the `ctrlc`
> command in all of these[1] three loops inside the
> `mem_test_moving_inversions` function. Is that correct? 

Yes, correct.

> Or is there an
> other way to not listen on ctrl+c but let the poller itself run?

You could add poller_call() directly. The idea of adding ctrlc() is just
that this way you could also make the memtest interruptible for the
user.

Sascha

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