linux-kernel - Re: Nokia N900: annoying yellow LED while battery is charging (and some progress with free userspace)

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Date:	Sun, 17 Jan 2016 00:27:38 +0100
From:	Pali Rohár <pali.rohar@...il.com>
To:	Pavel Machek <pavel@....cz>
Cc:	sre@...ian.org, sre@...g0.de,
	kernel list <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel" <linux-arm-kernel@...ts.infradead.org>,
	linux-omap@...r.kernel.org, tony@...mide.com, khilman@...nel.org,
	aaro.koskinen@....fi, ivo.g.dimitrov.75@...il.com,
	patrikbachan@...il.com, serge@...lyn.com
Subject: Re: Nokia N900: annoying yellow LED while battery is charging (and some progress with free userspace)

On Sunday 17 January 2016 00:22:22 Pavel Machek wrote:
> Hi!
> 
> While battery is charging, 3 color LED produces yellow light.. at
> quite high intensity, which makes screen unpleasant to look at (with
> 4.4 kernel).
> 
> I'm pretty sure original Maemo did not try to blind me.
> 
> It looks like CHRG_IND signal goes from charger to LEDs, and
> BOOT_MODE pin may be involved.
> 
> Any idea how to get rid of the light?

echo 0 > /sys/class/power_supply/bq24150a-0/stat_pin_enable

-- 
Pali Rohár
pali.rohar@...il.com

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