Whilst updating a Pi3 on stable.
Oct 15 11:20:33 zynthian-amp startx: gpio: Unable to open GPIO direction interface for pin 7: No such file or directory
Oct 15 11:20:33 zynthian-amp startx: wiringPiISR: unable to open /sys/class/gpio/gpio7/value: No such file or directory
Don’t remember seeing that one before. But it’s about to get a new SSD so it might stop complaining.
Caused by use of a previously working GPIO direct connected Encoders as per :
With wiring selected and above pins it fails to start with above line.
I’ll log a bug.
Caused by spi mode being enabled in raspi-config…
The pin involved was the only pin i’d used in the SPI block GPIO 7,8,9,10,11
So did you chose different pins or disable SPI? If the latter please share with the class.
Disabled SPI in raspi-config.
Mind you it’s a right old fight as the pi keeps rebooting and you don’t get webconf for more than 10 seconds or so…
Still fighting pin 11 & audio device.
I think this Pi is in for a new stable build.
It’s now working at last …
now that was a bug!!
Rebuilt on a clean stable…
Switched to testing.
Added audio card hifiberry Amp…
Started . . .
Configured wiring as per attached … Same problem …
Turned off SPI in raspi-config now works . . .
So there is something about the hifiberry amp settings and the SPI mechanism…
After a bit of soldering …
Moving the Prviously pin 26, connected to the Back switch to Pin 10 and including 16 in the 2nd position of the Switch settings, we have a functioning zynthi…
And it reboots cleanly!
I notice we have the timeout power off back !!