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sk337 avatar sk337 commented on June 3, 2024 1

It seems that Raspberry OS kernel addresses GPIO pins yet by another numbering scheme.

cat /sys/kernel/debug/gpio gpio-512 (ID_SDA ) gpio-513 (ID_SCL ) gpio-514 (GPIO2 ) gpio-515 (GPIO3 ) gpio-516 (GPIO4 ) gpio-517 (GPIO5 ) gpio-518 (GPIO6 ) gpio-519 (GPIO7 ) gpio-520 (GPIO8 ) gpio-521 (GPIO9 ) gpio-522 (GPIO10 ) gpio-523 (GPIO11 ) gpio-524 (GPIO12 ) gpio-525 (GPIO13 ) gpio-526 (GPIO14 ) gpio-527 (GPIO15 ) gpio-528 (GPIO16 ) gpio-529 (GPIO17 ) gpio-530 (GPIO18 ) gpio-531 (GPIO19 ) gpio-532 (GPIO20 ) gpio-533 (GPIO21 ) gpio-534 (GPIO22 ) gpio-535 (GPIO23 ) gpio-536 (GPIO24 ) gpio-537 (GPIO25 ) gpio-538 (GPIO26 ) gpio-539 (GPIO27 )

You must use the number after gpio-[number]

ok looks just to be offset by 512

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michaelpeterlee avatar michaelpeterlee commented on June 3, 2024

Same here with RPi5 Node v18.19.0

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michaelpeterlee avatar michaelpeterlee commented on June 3, 2024

Workaround: #199

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alex-reach avatar alex-reach commented on June 3, 2024

It seems that Raspberry OS kernel addresses GPIO pins yet by another numbering scheme.

cat /sys/kernel/debug/gpio
gpio-512 (ID_SDA )
gpio-513 (ID_SCL )
gpio-514 (GPIO2 )
gpio-515 (GPIO3 )
gpio-516 (GPIO4 )
gpio-517 (GPIO5 )
gpio-518 (GPIO6 )
gpio-519 (GPIO7 )
gpio-520 (GPIO8 )
gpio-521 (GPIO9 )
gpio-522 (GPIO10 )
gpio-523 (GPIO11 )
gpio-524 (GPIO12 )
gpio-525 (GPIO13 )
gpio-526 (GPIO14 )
gpio-527 (GPIO15 )
gpio-528 (GPIO16 )
gpio-529 (GPIO17 )
gpio-530 (GPIO18 )
gpio-531 (GPIO19 )
gpio-532 (GPIO20 )
gpio-533 (GPIO21 )
gpio-534 (GPIO22 )
gpio-535 (GPIO23 )
gpio-536 (GPIO24 )
gpio-537 (GPIO25 )
gpio-538 (GPIO26 )
gpio-539 (GPIO27 )

You must use the number after gpio-[number]

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szwacz avatar szwacz commented on June 3, 2024

Looks like every GPIO library when run on new kernel will have this issue. At the same time seems like the whole community is perplexed what actually happened. Did you manage to find any official explanation how to prepare for this change and why it was introduced?

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SamDecrock avatar SamDecrock commented on June 3, 2024

On Raspbian Bullseye it works, on Raspbian Bookworm it's broken.

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