WiringPi issue after upgrading to Pi4

Troubleshooting
1

HI,
I have DietPi 7.0.2 successful working on a Raspberry Pi 3b. I moved the SD card to a Raspberry Pi 4 2G and all seemed to work. However I have a piece of code that uses Wiring Pi. I think Wiring Pi must be Raspberry Pi specific, since my code is not working. I have tried uninstalling Wiring Pi and reinstalling, but it is not installing properly.

I get the following when I run gpio -v

root@DietPi:/home/dietpi# gpio -v
gpio version: 2.46
Copyright (c) 2012-2018 Gordon Henderson
This is free software with ABSOLUTELY NO WARRANTY.
For details type: gpio -warranty

Raspberry Pi Details:
  Type: 00, Revision: 02, Memory: 0MB, Maker: Sony 
  * Device tree is enabled.
  *--> Raspberry Pi 4 Model B Rev 1.2
  * This Raspberry Pi supports user-level GPIO access.

I think the Type and memory are reported incorrectly.

and when I run GPIO readall, I get:

root@DietPi:/home/dietpi# gpio readall
Oops - unable to determine board type... model: 17

This is meant to bring up a map of the GPIO pins with WiringPi and GPIO pin numbering.

Is anyone able to help me get WiringPi reinstalled correctly please.

2

Ok, I think I have found the issue, DietPi installs WiringPi version 2.46. However the Raspberry Pi4, requires WiringPi version 2.52

There are upgrade instructions on the WiringPi website http://wiringpi.com/wiringpi-updated-to-2-52-for-the-raspberry-pi-4b/

cd /tmp
wget https://project-downloads.drogon.net/wiringpi-latest.deb
sudo dpkg -i wiringpi-latest.deb

Will this work with the DietPi implementation?
Thanks.

3

it might not gonna work as DietPi will install WiringPi to /usr/local/bin while the deb package will be installed to /usr/bin

I would recommend to uninstall the DietPi version using dietpi-software + rm /usr/local/bin/gpio + reboot

Once done install the dep package afterwards

However, do a backup before. In case needed, you could restore.

[hr]
MichaIng
I know WiringPi deprecated http://wiringpi.com/wiringpi-deprecated/
But should we switch to the dep version 2.52 to allow support on RPi4?

4

Thanks for this, I have followed these instruction, then I did apt purge wiringpi to remove everything. I rebooted and checked it had been removed

root@DietPi:/home/dietpi# gpio -v
bash: /usr/bin/gpio: No such file or directory

So I then installed again with apt install wiringpi which resulted in this:

root@DietPi:/home/dietpi# apt install wiringpi
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following NEW packages will be installed:
  wiringpi
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 52.9 kB of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 https://archive.raspberrypi.org/debian buster/main armhf wiringpi armhf 2.50 [52.9 kB]
Fetched 52.9 kB in 0s (168 kB/s)    
Selecting previously unselected package wiringpi.
(Reading database ... 47327 files and directories currently installed.)
Preparing to unpack .../wiringpi_2.50_armhf.deb ...
Unpacking wiringpi (2.50) ...
Setting up wiringpi (2.50) ...

So this looks like version 2.5 is installed, this still needs updating to v2.52. However when I check the version with gpio -v I get

root@DietPi:/home/dietpi# gpio -v
gpio version: 2.46
Copyright (c) 2012-2018 Gordon Henderson
This is free software with ABSOLUTELY NO WARRANTY.
For details type: gpio -warranty

Raspberry Pi Details:
  Type: (null), Revision: 02, Memory: 0MB, Maker: Sony 
  * Device tree is enabled.
  *--> Raspberry Pi 4 Model B Rev 1.2
  * This Raspberry Pi supports user-level GPIO access.

Which shows version 2.46 installed. I’ve tried then upgrading to 2.5.2 with

cd /tmp
wget https://project-downloads.drogon.net/wiringpi-latest.deb
sudo dpkg -i wiringpi-latest.deb

but it always stays at version 2.46. I tried this same procedure on a RPi4 with Raspberry Pi OS installed and it worked as expected.

Any idea what is going on?

5

looks like it depends how stuff is installed. If you install self compiled version 2.46 first, you still get this version even if it was uninstalled and a different version get installed. Maybe there are left overs leading to this


EDIT:
OK I found more files that would need to be removed before you can install the deb file

rm /usr/lib/libwiringPi*
rm /usr/local/lib/libwiringPi*

I did a comparison after compiling 2.46 and found these sym links

/usr/local/lib/
/usr/local/lib/libwiringPi.so -> libwiringPi.so.2.46
/usr/local/lib/libwiringPi.so.2.46
/usr/local/lib/libwiringPiDev.so -> libwiringPiDev.so.2.46
/usr/local/lib/libwiringPiDev.so.2.46




/usr/lib/
/usr/lib/libwiringPi.so -> /usr/local/lib/libwiringPi.so.2.46
/usr/lib/libwiringPiDev.so -> /usr/local/lib/libwiringPiDev.so.2.46

after removing them, the deb file installation was successful and showing correct version.

MichaIng
We definitely should rework WiringPi removal process.

6

Perfect, all working well now. Thank you very much for your time on this. really appreciate it. :smiley:

7

thx for confirmation, good it is working now. :sunglasses: