This bug was fixed in the package linux-raspi - 6.8.0-1024.28
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linux-raspi (6.8.0-1024.28) noble; urgency=medium
* noble/linux-raspi: 6.8.0-1024.28 -proposed tracker (LP: #2107068)
* Remove obsolete build flags in derivative kernels (LP: #2077306)
- [Packaging] raspi: Remove obsolete do_source_package build flag
* Packaging resync (LP: #1786013)
- [Packaging] debian.raspi/dkms-versions -- update from kernel-versions
(main/s2025.03.17)
* mmc0 error on boot with eMMC CM5 (LP: #2089555)
- DTS: bcm2712: emmc2 clock frequency is 200MHz
- DTS: bcm2712: defer SDIO1 CQE selection to the board dtb
- dts: bcm2712: cm5: Disable HS400
- dts: bcm2712: cm5: There is no card detect signal
- dts: bcm2712: cm5: Add antenna controls
- dts: bcm2712: cm5: Force the ANT pins to GPIOs
- dts: bcm2712: cm5: fix typo and declare HS400es support
* GPIO sysfs disabled in raspi kernel (LP: #2099685)
- [Config] raspi: Set GPIO_SYSFS=y
* Kernel compiled with different CONFIG_SERIAL_8250_NR_UARTS to Raspberry Pi
OS (LP: #2096796)
- [Config] raspi: Set SERIAL_8250_NR_UARTS=16
-- Juerg Haefliger <[email protected]> Thu, 17 Apr 2025
13:09:26 +0200
** Changed in: linux-raspi (Ubuntu Noble)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/2099685
Title:
GPIO sysfs disabled in raspi kernel
Status in linux-raspi package in Ubuntu:
Invalid
Status in linux-raspi source package in Noble:
Fix Released
Bug description:
[Impact]
Core24 exposes the raspi GPIO sysfs interface. It's a deprecated
kernel interface that was disabled in Kinetic. Snapd needs to change
but that won't happen for core24 so we need to turn it back on :-(
See bug #2096665.
[Fix]
Enable CONFIG_GPIO_SYSFS
[Test Case]
See bug #2096665.
[Where Problems Could Occur]
GPIO access through sysfs might interfere with other GPIO users like
gpiod which is the official way nowadays.
[Notes]
We only re-enable this in Noble, specifically for core24. Newer
kernels will keep it turned off.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-raspi/+bug/2099685/+subscriptions
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