Hi Pablo, Found the cause for the Help problem. On CentOS, /boot/overlays/README is missing. It contains the help for all the dtoverlay commands...

I got the file from its original distro, and I put it under /boot/overlays/README.rasp for the demo: [pi@myrpi ~]$ dtoverlay -h i2c-gpio * Help file not found [pi@myrpi ~]$ sudo mv /boot/overlays/README.rasp /boot/overlays/README [pi@myrpi ~]$ dtoverlay -h i2c-gpio Name: i2c-gpio

Info: Adds support for software i2c controller on gpio pins

Usage: dtoverlay=i2c-gpio,<param>=<val>

Params: i2c_gpio_sda GPIO used for I2C data (default "23")

i2c_gpio_scl GPIO used for I2C clock (default "24")

i2c_gpio_delay_us Clock delay in microseconds (default "2" = ~100kHz)

[pi@myrpi ~]$

Unfortunatelly, the files under this folder seem to belong to no package... [pi@myrpi ~]$ rpm -qf /boot/overlays/i2c-gpio.dtbo file /boot/overlays/i2c-gpio.dtbo is not owned by any package [pi@myrpi ~]$

So, I'm stuck there, for now ...

Le lun. 24 sept. 2018 à 14:12, Stephan Guilloux < stephan.guilloux@crisalid.com> a écrit :

Le 24/09/2018 à 10:46, Pablo Sebastian Greco a écrit :

El 24 sept 2018, a las 04:41, Stephan Guilloux < stephan.guilloux@crisalid.com> escribió:

Hello Pablo,

Sorry for the direct mail.

No problem. I'm on vacation this week so it is probably better

Enjoy ;-)

I'll have a look, this week, but I need the sources that CentOS delivers. I Tried to check on vault.centos.org, but no armhfp (only aarch64).

You're right. I had touble finding it myself. It got lost when moving from the old to the new build system. Try here https://armv7.dev.centos.org/repodir/c7-extras-1/raspberrypi-vc/20170705-502... I'll update the srpm and probably github when I'm back but if you find the problems, better. Hehe

OK. Got it there. Will inform you through the list, in case I find anything.

Can you indicate where to find the current raspberrypi-vc-utils.src.rpm ?

Regards,

    Stéphan.

Thanks, Pablo

Le 20/09/2018 à 13:02, Pablo Sebastián Greco a écrit :

Stephan, sorry for the delay El 10/9/18 a las 12:28, Stephan Guilloux escribió:

Hello,

Small issues, today, with dtoverlay gpio-shutdown/poweroff

[root@mypi ~]# dtoverlay gpio-shutdown
su: user pi does not exist
* Failed to apply overlay '1_gpio-shutdown' (kernel)
su: user pi does not exist
[root@mypi ~]# dtoverlay gpio-poweroff
su: user pi does not exist
su: user pi does not exist
[root@mypi ~]#

That seems to come from here ( https://github.com/raspberrypi/userland/blob/master/host_applications/linux/...). If you run as root, it tries to run as the user "pi", as a normal user(any), you shouldn't have that problem

Even if I add a fake user "PI", this does not work better.

[root@mypi ~]# useradd -r pi -p pi
[root@mypi ~]#
[root@mypi ~]#
[root@mypi ~]# dtoverlay gpio-poweroff
* Failed to apply overlay '2_gpio-poweroff' (kernel)
[root@mypi ~]# dtoverlay gpio-shutdown
* Failed to apply overlay '2_gpio-shutdown' (kernel)
[root@mypi ~]#

That bit seems to come from here ( https://github.com/raspberrypi/userland/blob/2448644657e5fbfd82299416d218396...), it fails to check if the overlay was actually applied

But when I check the overlay list, I get:

[root@mypi ~]# dtoverlay -l
Overlays (in load order):
0:  gpio-shutdown
1:  gpio-poweroff
[root@mypi ~]#

At least, something is done :-)

That is a little stranger, why does it say it did something when the command before said it failed???

Last problems: [root@mypi ~]# dtoverlay -h gpio-shutdown * Help file not found [root@mypi ~]# dtoverlay -h gpio-poweroff * Help file not found [root@mypi ~]# dtoverlay -h rpi-rtc * Help file not found [root@mypi ~]# dtoverlay -h rpi-display * Help file not found [root@mypi ~]#

I guess I'll have to add some debugging info and check in my rpi (as time permits)

In case ... [root@mypi ~]# cat /proc/version Linux version 4.14.65-v7.1.el7 (mockbuild@armhfp-03.bsys.centos.org) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-28) (GCC)) #1 SMP Mon Aug 20 19:04:20 UTC 2018 [root@mypi ~]#

[root@mypi ~]# rpm -qa 'raspberrypi-vc*'
raspberrypi-vc-demo-source-20170705-502.gitaa39775.el7.noarch
raspberrypi-vc-libs-20170705-502.gitaa39775.el7.armv7hl
raspberrypi-vc-utils-20170705-502.gitaa39775.el7.armv7hl
[root@mypi ~]#

2 questions

1. has it ever worked before?
2. which rpi exactly are you using? (don't know if it is really relevant).

Thanks. Pablo.

Stephan.

P.S.: Today we built 4.14.71 and will be released as soon as it passes the tests.