[SailfishDevel] The Other Half I2C

Kimmo Lindholm Kimmo.Lindholm at eke.fi
Fri Dec 27 23:31:37 UTC 2013


Should this work?

in path /sys/devices/platform/reg-userspace-consumer.0
[nemo at localhost reg-userspace-consumer.0]$ echo 1 > state
-bash: state: Lupa evätty

or need root access?
________________________________
Lähettäjä: devel-bounces at lists.sailfishos.org [devel-bounces at lists.sailfishos.org] käyttäjän Kimmo Lindholm [Kimmo.Lindholm at eke.fi] puolesta
Lähetetty: 23. joulukuuta 2013 18:20
Vastaanottaja: Sailfish OS Developers
Aihe: Re: [SailfishDevel] The Other Half I2C

Then I have to just sit and wait.
Or is there any magic that I can store to the eeprom to keep it active?

-kimmo

From: devel-bounces at lists.sailfishos.org [mailto:devel-bounces at lists.sailfishos.org] On Behalf Of Jonni Rainisto
Sent: Monday, December 23, 2013 6:06 PM
To: Sailfish OS Developers
Subject: Re: [SailfishDevel] The Other Half I2C


NOTE: This API is not supported in initial Jolla device software. It will be available from 1.0.2.* and later Sailfish OS releases.
# Enable VDD
echo 1 > /sys/devices/platform/reguserspaceconsumer.0/state
# Disable VDD
echo 0 > /sys/devices/platform/reguserspaceconsumer.0/state

So unfortunately you have to wait for next update before you can unable 3.3V pin from user space. But that should happen 'soon'...
________________________________
From: devel-bounces at lists.sailfishos.org [devel-bounces at lists.sailfishos.org] on behalf of Kimmo Lindholm [Kimmo.Lindholm at eke.fi]
Sent: Monday, December 23, 2013 4:49 PM
To: devel at lists.sailfishos.org
Subject: [SailfishDevel] The Other Half I2C
Anchors aweigh!

Just hooked up scope to I2C bus on pogo pins, and there is life!

Can someone point me in correct direction to enable 3.3V pin?

3.3V seems to be active just for a while when I press the cover detector switch and after eeprom in address 0x50 is tested 3.3V is gone.

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