GPIO (leds) default values

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paolodenti
Posts: 3
Joined: Tue Oct 15, 2019 12:43 am

GPIO (leds) default values

Post by paolodenti »

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

tamir
Site Admin
Posts: 419
Joined: Mon Dec 25, 2017 4:21 pm

Re: GPIO (leds) default values

Post by tamir »

Please find below manual for controlling the fitlet2 GPIO front LEDs:
http://fit-pc.com/wiki/index.php?title= ... front_LEDs

paolodenti
Posts: 3
Joined: Tue Oct 15, 2019 12:43 am

Re: GPIO (leds) default values

Post by paolodenti »

tamir wrote:Please find below manual for controlling the fitlet2 GPIO front LEDs:
http://fit-pc.com/wiki/index.php?title= ... 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.

tamir
Site Admin
Posts: 419
Joined: Mon Dec 25, 2017 4:21 pm

Re: GPIO (leds) default values

Post by tamir »

Unfortunately, it is not possible to control the default behavior from EFI.
This requires certain BIOS development as this feature is currently not available.

paolodenti
Posts: 3
Joined: Tue Oct 15, 2019 12:43 am

Re: GPIO (leds) default values

Post by paolodenti »

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.

Mikael63
Posts: 62
Joined: Sun Aug 19, 2018 9:53 am

Re: GPIO (leds) default values

Post by Mikael63 »

After my RMA, these LED behave a little differently.
Previously, I could with a simple script (Linux) turn off the LED directly at startup, if I wanted.
These LED then remained off even at shutdown.
Now these LED are lit green which feels illogical. Yellow or off when the unit is off would have been more logical.
Linux Mint Ulyssa (20.1) Cinnamon @ MBM2 Pro

Andrey.Mazlin
Posts: 37
Joined: Tue May 05, 2020 7:02 am

Re: GPIO (leds) default values

Post by Andrey.Mazlin »

Mikael63 wrote:
Wed Mar 24, 2021 5:35 pm
After my RMA, these LED behave a little differently.
Previously, I could with a simple script (Linux) turn off the LED directly at startup, if I wanted.
These LED then remained off even at shutdown.
Now these LED are lit green which feels illogical. Yellow or off when the unit is off would have been more logical.
Can you please check the BIOS version of this device?
Andrey Mazlin, Application Support Engineer
Useful links:
https://fit-iot.com/web/
Support Wiki: http://www.fit-pc.com/wiki/
Support mail: fitpcsupport@compulab.co.il

Mikael63
Posts: 62
Joined: Sun Aug 19, 2018 9:53 am

Re: GPIO (leds) default values

Post by Mikael63 »

Andrey.Mazlin wrote:
Mon Mar 29, 2021 8:36 am
Can you please check the BIOS version of this device?
BIOS version FLT2.MBM2.0.46.02.00
Build 01/11/2021 11:55:53
Linux Mint Ulyssa (20.1) Cinnamon @ MBM2 Pro

Andrey.Mazlin
Posts: 37
Joined: Tue May 05, 2020 7:02 am

Re: GPIO (leds) default values

Post by Andrey.Mazlin »

See this: https://fit-pc.com/wiki/index.php?title ... 7-Mar-2021
R&D did a roll back of BIOS, so you can try to install a new version.
https://fit-pc.com/wiki/index.php?title ... IOS_Update
Andrey Mazlin, Application Support Engineer
Useful links:
https://fit-iot.com/web/
Support Wiki: http://www.fit-pc.com/wiki/
Support mail: fitpcsupport@compulab.co.il

Mikael63
Posts: 62
Joined: Sun Aug 19, 2018 9:53 am

Re: GPIO (leds) default values

Post by Mikael63 »

Andrey.Mazlin wrote:
Thu Apr 01, 2021 12:24 pm
See this: https://fit-pc.com/wiki/index.php?title ... 7-Mar-2021
R&D did a roll back of BIOS, so you can try to install a new version.
https://fit-pc.com/wiki/index.php?title ... IOS_Update
Confirmed - works!
Thanks!
Linux Mint Ulyssa (20.1) Cinnamon @ MBM2 Pro

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