WiringPi error RaspberryPi 4

[gervann]

So I ran into a problem when setting up two new rpi 4b’s.
After installing bookworm (first trying 64bit and then 32bit) and installing WiringPi, the following error pops up after running gpio -v:

gpio -v
gpio version: 2.52
Copyright (c) 2012-2018 Gordon Henderson
This is free software with ABSOLUTELY NO WARRANTY.
For details type: gpio -warranty

Oops: Unable to determine board revision from /proc/cpuinfo
-> No "Hardware" line
-> You'd best google the error to find out why.

It affects the Ouput setting and gives an error, eventually leading to an unresponsive SprinklerPi.

When installing a legacy os, like Bullseye, everything works (have working SprinklerPi’s on rpi 3b’s)

Any advice would be appreciated so much

-g

[nhorvath]

This looks like wiringpi not understanding your hardware. SprinklerPi requires wiringpi for output control so you will need to get that working before it will work.

…

On Sat, Feb 17, 2024 at 11:50 AM gervann ***@***.***> wrote: So I ran into a problem when setting up two new rpi 4b’s. After installing bookworm (first trying 64bit and then 32bit) and installing WiringPi, the following error pops up after running gpio -v: gpio -v gpio version: 2.52 Copyright (c) 2012-2018 Gordon Henderson This is free software with ABSOLUTELY NO WARRANTY. For details type: gpio -warranty Oops: Unable to determine board revision from /proc/cpuinfo -> No "Hardware" line -> You'd best google the error to find out why. It affects the Ouput setting and gives an error, eventually leading to an unresponsive SprinklerPi. When installing a legacy os, like Bullseye, everything works (have working SprinklerPi’s on rpi 3b’s) Any advice would be appreciated so much -g — Reply to this email directly, view it on GitHub <#199>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AABIJXE4ILVJYQ3KERD5OULYUDNWRAVCNFSM6AAAAABDNN6JJGVHI2DSMVQWIX3LMV43ASLTON2WKOZSGE2DAMRZG4YDAOI> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[gervann]

This looks like wiringpi not understanding your hardware. SprinklerPi requires wiringpi for output control so you will need to get that working before it will work.
…
On Sat, Feb 17, 2024 at 11:50 AM gervann @.> wrote: So I ran into a problem when setting up two new rpi 4b’s. After installing bookworm (first trying 64bit and then 32bit) and installing WiringPi, the following error pops up after running gpio -v: gpio -v gpio version: 2.52 Copyright (c) 2012-2018 Gordon Henderson This is free software with ABSOLUTELY NO WARRANTY. For details type: gpio -warranty Oops: Unable to determine board revision from /proc/cpuinfo -> No "Hardware" line -> You'd best google the error to find out why. It affects the Ouput setting and gives an error, eventually leading to an unresponsive SprinklerPi. When installing a legacy os, like Bullseye, everything works (have working SprinklerPi’s on rpi 3b’s) Any advice would be appreciated so much -g — Reply to this email directly, view it on GitHub <#199>, or unsubscribe https://github.com/notifications/unsubscribe-auth/AABIJXE4ILVJYQ3KERD5OULYUDNWRAVCNFSM6AAAAABDNN6JJGVHI2DSMVQWIX3LMV43ASLTON2WKOZSGE2DAMRZG4YDAOI . You are receiving this because you are subscribed to this thread.Message ID: @.>

Thank you.

Yes I figured that much. Forums are littered with people calling for a move away from wiringPi as it was deprecated a while ago. There are forks of it from enthusiasts who want to keep it alive, but I think new development and upgrades have stopped when Gordon shelved it.

This is where I am stuck and want to know if anybody else came across this?
I am a bit noobish with the code and need to focus my time elsewhere at the moment.
It leaves me with a dilemma as I need to commission two sprinkler systems this week.

Any insight or help will be greatly appreciated.

-g

[gervann]

So problem solved.

There is a brilliant guy on stackexchange who gave the solution a few days ago.
The link to the post describes a work-around in the WiringPi source. By editing wiringpi.c with moving a line of code up by about 24 lines solved it.
It looks like this:
at line 782 (originally): #ifdef DONT_CARE_ANYMORE must be moved to just below line 758:
if ((cpuFd = fopen ("/proc/cpuinfo", "r")) == NULL)
piGpioLayoutOops ("Unable to open /proc/cpuinfo") ;
to look like:
if ((cpuFd = fopen ("/proc/cpuinfo", "r")) == NULL)
piGpioLayoutOops ("Unable to open /proc/cpuinfo") ; #ifdef DONT_CARE_ANYMORE

Build it and run gpio -v to check if the error pops up again.
Just a note: remove all previous wiringPi installations before commencing with this work-around.

Here is an ouput of gpio -v on one of the current RPi 4's:
gpio version: 2.70
Copyright (c) 2012-2018 Gordon Henderson
This is free software with ABSOLUTELY NO WARRANTY.
For details type: gpio -warranty

Raspberry Pi Details:
Type: Pi 4B, Revision: 01, Memory: 4096MB, Maker: Sony
* Device tree is enabled.
*--> Raspberry Pi 4 Model B Rev 1.1
* This Raspberry Pi supports user-level GPIO access.

I hope this will guide and help someone in the future.
Kudus to user160491 for the solution/work-around!

ps. I used master fork @ https://github.com/WiringPi/WiringPi/tree/master/wiringPi.

-g