View unanswered posts | View active topics It is currently Wed Nov 20, 2019 10:41 pm



Reply to topic  [ 5 posts ] 
 GPIO (leds) default values 
Author Message

Joined: Tue Oct 15, 2019 12:43 am
Posts: 3
Post GPIO (leds) default values
I have not found any setting in the UEFI to set the default value of LED 2 and 3 to off.

How can it be done?

Thank you


Tue Oct 15, 2019 2:38 pm
Profile
Site Admin

Joined: Mon Dec 25, 2017 4:21 pm
Posts: 381
Post Re: GPIO (leds) default values
Please find below manual for controlling the fitlet2 GPIO front LEDs:
http://fit-pc.com/wiki/index.php?title=Application_note_-_fitlet2_controlling_front_LEDs


Wed Oct 16, 2019 6:55 am
Profile

Joined: Tue Oct 15, 2019 12:43 am
Posts: 3
Post Re: GPIO (leds) default values
tamir wrote:
Please find below manual for controlling the fitlet2 GPIO front LEDs:
http://fit-pc.com/wiki/index.php?title=Application_note_-_fitlet2_controlling_front_LEDs

thank you Tamir, we are already using the gpio to control the LEDs.
However my question was related to the default value of the LED, the one set, I guess, by the firmware.

The LEDs, after power on, are ON by default and we would like to have them OFF.


Wed Oct 16, 2019 6:59 am
Profile
Site Admin

Joined: Mon Dec 25, 2017 4:21 pm
Posts: 381
Post Re: GPIO (leds) default values
Unfortunately, it is not possible to control the default behavior from EFI.
This requires certain BIOS development as this feature is currently not available.


Wed Oct 16, 2019 11:53 am
Profile

Joined: Tue Oct 15, 2019 12:43 am
Posts: 3
Post Re: GPIO (leds) default values
tamir wrote:
Unfortunately, it is not possible to control the default behavior from EFI.
This requires certain BIOS development as this feature is currently not available.


Thank you Tamir

As a personal consideration, I think the default value should always be off.
If LEDs 2 and 3 are meant to be customized by the user, they are meant to go on whenever the user service is "ready/on/available" and that happens under some explicit actions; it does not happen when the board is booting.


Wed Oct 16, 2019 2:23 pm
Profile
Display posts from previous:  Sort by  
Reply to topic   [ 5 posts ] 

Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group.
Designed by STSoftware for PTF.