vcgencmd

[jpoilux]

is it possible to install vcgencmd?
and how?

thanks

[diederikdehaas]

You need to install rpi-update (and curl) and then run it.

[hifi]

I think there is a package that has the binary stuff too so it should be preferred over rpi-update.

[jpoilux]

i allready done rpi-update. curl is ok.
i'm up to date.
i've fund vcgencmd in /opt/vc/bin/
but when running it as root:
/vcgencmd: error while loading shared libraries: libvcos.so: cannot open shared object file: No such file or directory

[jpoilux]

news:
export PATH=$PATH:/opt/vc/bin
export LD_LIBRARY_PATH=$LD_LIBRARYPATH:/opt/vc/lib

now i've:
VCHI initialization failed

[diederikdehaas]

Did you try to run it with the preceding '/' or without it?
Otherwise it sounds like something went wrong when installing/running rpi-update.

[jpoilux]

not, it's a wrong copy/paste.
it seem's i need add video group to my user.

[diederikdehaas]

@hifi indeed there is: libraspberrypi-bin source
But it conflicts with raspberrypi-bootloader-nokernel...

[jpoilux]

yeah!
it work's!!!
sudo usermod -G video www-data
rock&roll!

Thanks to diederikdehaas and hifi.

now, i just need to make exports permanent:
export PATH=$PATH:/opt/vc/bin
export LD_LIBRARY_PATH=$LD_LIBRARYPATH:/opt/vc/lib

[diederikdehaas]

I can confirm your issue btw:

# /opt/vc/bin/vcgencmd 
/opt/vc/bin/vcgencmd: error while loading shared libraries: libvcos.so: cannot open shared object file: No such file or directory
root@rasppi:~# ldd /opt/vc/bin/vcgencmd 
        libvcos.so => not found
        libvchiq_arm.so => not found
        libpthread.so.0 => /lib/arm-linux-gnueabihf/libpthread.so.0 (0xb6f07000)
        libdl.so.2 => /lib/arm-linux-gnueabihf/libdl.so.2 (0xb6efc000)
        librt.so.1 => /lib/arm-linux-gnueabihf/librt.so.1 (0xb6eed000)
        libc.so.6 => /lib/arm-linux-gnueabihf/libc.so.6 (0xb6dbc000)
        /lib/ld-linux-armhf.so.3 (0xb6f2c000)

But this is an issue with rpi-update, not this project (hence me closing the issue rather quickly)

[jpoilux]

ho, yes, not depending to your project.
many thank's.

[diederikdehaas]

Reported it here: Hexxeh/rpi-update#143

[diederikdehaas]

Just closed that issue without a proper solution :-/
The manual fix is creating a /etc/ld.so.conf.d/00-vmcs.conf file with the following contents:

/opt/vc/lib

And then running ldconfig afterwards. That should fix the issue.

PS: This should be part of the post-install script of the rpi-update package

[jpoilux]

in addition:
ln -s /opt/vc/bin/vcgencmd /usr/bin
sudo vcgencmd works!

thanks!

[diederikdehaas]

Correct.
By doing that you make it available under $PATH (do echo $PATH and you'll see /usr/bin/ in there)
Alternatively, you could add /opt/vc/bin/ to your $PATH variable.

[diederikdehaas]

It turns out there is a better way to get vcgencmd onto raspbian (thanks to plugwash).
When disabling the raspberrypi.org archives in /etc/apt/sources.list, doing apt-get update and then installing the libraspberrypi-bin package, you get vcgencmd (and others) and it's automatically symlinked to /usr/bin so you can invoke them without using the full path :-)

Gonna work on a proper implementation now ...

[diederikdehaas]

Fixed with the release of version 1.0.5