Sorry but I no longer have access to the affected machine, so I cannot test the proposed fix.
- Arthur On Fri, 1 Mar 2024 at 07:26, Ubuntu Kernel Bot <1953...@bugs.launchpad.net> wrote: > This bug is awaiting verification that the linux-mtk/5.15.0-1030.34 > kernel in -proposed solves the problem. Please test the kernel and > update this bug with the results. If the problem is solved, change the > tag 'verification-needed-jammy-linux-mtk' to 'verification-done-jammy- > linux-mtk'. If the problem still exists, change the tag 'verification- > needed-jammy-linux-mtk' to 'verification-failed-jammy-linux-mtk'. > > > If verification is not done by 5 working days from today, this fix will > be dropped from the source code, and this bug will be closed. > > > See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how > to enable and use -proposed. Thank you! > > > ** Tags added: kernel-spammed-jammy-linux-mtk-v2 > verification-needed-jammy-linux-mtk > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1953613 > > Title: > GPIO character device v1 API not enabled in kernel > > Status in linux package in Ubuntu: > Fix Released > Status in linux-allwinner-5.17 package in Ubuntu: > Invalid > Status in linux-hwe-5.17 package in Ubuntu: > Invalid > Status in linux-starfive-5.17 package in Ubuntu: > Invalid > Status in linux source package in Jammy: > Fix Released > Status in linux-allwinner-5.17 source package in Jammy: > Fix Released > Status in linux-hwe-5.17 source package in Jammy: > Fix Committed > Status in linux-starfive-5.17 source package in Jammy: > Fix Released > > Bug description: > [Impact] > > * The libgpiod2 library and gpiod tools shipped in Jammy don't work. > > * These tools are meant to replace the old sysfs interface and be > a better and more efficient way to manipulate GPIOs from userspace. > Unfortunately the latest release is still using v1 of the character > device kernel API which is not enabled in Ubuntu kernels. > > * This is Kent Gibsons reply on the linux-gpio mailing list: > > On Tue, Jul 12, 2022 at 09:48:45AM +0200, Alexandre Ghiti wrote: > > Hi, > > > > Ubuntu kernels do not enable GPIO_CDEV_V1 as it is deprecated, but the > > libgpiod package that we ship is still based on the latest version > > 1.6.3 which does not implement the API v2. So I'd like to update > > libgpiod, do you have any recommendations about what branch/sha1 I > > should use? Do you plan to make a release that implements the API v2? > > > > Firstly, libgpiod is Bart's library so he is the authority, but this > is my understanding... > > TLDR: You should keep GPIO_CDEV_V1 enabled. > > v1 is deprecated from a development perspective, so all new feature > development will occur on v2, and new applications should target v2. > Existing apps targetting v1, be that directly or via libgpiod v1.6.3, > will require GPIO_CDEV_V1 until they migrate to v2. > The mainline kernel will continue to support v1 while userspace > transitions. > > libgpiod v2 is in active development, and should reach its first release > shortly. > Note that it is NOT a plugin replacement for v1. It has a different API, > for similar reasons to why we had to switch in the kernel, so apps will > need to be actively migrated. > > I wouldn't suggest making any effort to package libgpiod v2 until Bart > makes an official release. > > Cheers, > Kent. > > [Test Plan] > > * Run gpioinfo on a machine with exposed GPIOs and check that it lists > the GPIOs and doesn't error with > > gpioinfo: error creating line iterator: Invalid argument > > [Where problems could occur] > > * There may be code and scripts that hasn't been tested with a working > libgpiod2/gpiod tools and uncover latent bugs. > > [Other Info] > > Original bug text: > > The current versions of gpiod, libgpiod-dev and libgpiod2 (1.6.2-1) > use version 1 of the GPIO character device API. However, they cannot > work because the interface is disabled in the default kernel (tested > with 5.13.19). After rebuilding the kernel with the option > CONFIG_GPIO_CDEV_V1=y, the gpiod tools work as expected. > > Thanks to Marek Szuba, who reported the same bug for Gentoo > (https://bugs.gentoo.org/807334), pointing me in the right direction. > > What I expect to happen: > > $ gpiodetect > gpiochip0 [0-003c] (8 lines) > $ gpioinfo > gpiochip0 - 8 lines: > line 0: unnamed unused output active-high > line 1: unnamed unused output active-high > line 2: unnamed unused output active-high > line 3: unnamed unused output active-high > line 4: unnamed unused output active-high > line 5: unnamed unused output active-high > line 6: unnamed unused input active-high > line 7: unnamed unused input active-high > $ gpioget gpiochip0 0 > 1 > > What actually happens: > > $ gpiodetect > gpiochip0 [0-003c] (8 lines) > $ gpioinfo > gpioinfo: error creating line iterator: Invalid argument > $ gpioget gpiochip0 0 > gpioget: error reading GPIO values: Invalid argument > > $ cat /proc/version_signature > Ubuntu 5.13.0-22.22-lowlatency 5.13.19 > > $ apt-cache policy libgpiod2 > libgpiod2: > Installed: 1.6.2-1 > Candidate: 1.6.2-1 > Version table: > *** 1.6.2-1 500 > 500 http://de.archive.ubuntu.com/ubuntu impish/universe amd64 > Packages > 100 /var/lib/dpkg/status > > I am testing with the onboard PCA9554A on a Fujitsu D3641-S > motherboard. > > $ lspci | grep -i smb > 00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev > 10) > $ lspci -s 1f.4 -vvv > 00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev > 10) > DeviceName: Onboard - Other > Subsystem: Fujitsu Technology Solutions Cannon Lake PCH SMBus Controller > Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR- FastB2B- DisINTx- > Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > Interrupt: pin A routed to IRQ 16 > Region 0: Memory at 6013106000 (64-bit, non-prefetchable) [size=256] > Region 4: I/O ports at efa0 [size=32] > Kernel driver in use: i801_smbus > Kernel modules: i2c_i801 > --- > ProblemType: Bug > ApportVersion: 2.20.11-0ubuntu71 > Architecture: amd64 > AudioDevicesInUse: > USER PID ACCESS COMMAND > /dev/snd/controlC0: dkfz 4589 F.... pulseaudio > /dev/snd/controlC1: dkfz 4589 F.... pulseaudio > CasperMD5CheckResult: unknown > CurrentDesktop: ubuntu:GNOME > DistroRelease: Ubuntu 21.10 > InstallationDate: Installed on 2018-11-12 (1122 days ago) > InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 > (20180725) > Lsusb: > Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub > Bus 001 Device 003: ID 7392:a812 Edimax Technology Co., Ltd Edimax > AC600 USB > Bus 001 Device 002: ID 256f:c650 3Dconnexion CadMouse > Bus 001 Device 004: ID 046d:c336 Logitech, Inc. Gaming Keyboard G213 > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > NonfreeKernelModules: nvidia_modeset nvidia > Package: linux (not installed) > ProcFB: 0 i915drmfb > ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.13.19 > root=UUID=75550043-7044-41bf-a01e-bf41b267f7d0 ro > ProcVersionSignature: Ubuntu 5.13.0-22.22-lowlatency 5.13.19 > RelatedPackageVersions: > linux-restricted-modules-5.13.19 N/A > linux-backports-modules-5.13.19 N/A > linux-firmware 1.201.1 > RfKill: > 0: phy0: Wireless LAN > Soft blocked: no > Hard blocked: no > Tags: impish > Uname: Linux 5.13.19 x86_64 > UpgradeStatus: Upgraded to impish on 2021-10-19 (49 days ago) > UserGroups: sudo > WifiSyslog: > > _MarkForUpload: True > dmi.bios.date: 02/18/2021 > dmi.bios.release: 1.12 > dmi.bios.vendor: FUJITSU // American Megatrends Inc. > dmi.bios.version: V5.0.0.13 R1.12.0 for D3641-S1x > dmi.board.name: D3641-S1 > dmi.board.vendor: FUJITSU > dmi.board.version: S26361-D3641-S1 > dmi.chassis.type: 3 > dmi.chassis.vendor: FUJITSU > dmi.modalias: > dmi:bvnFUJITSU//AmericanMegatrendsInc.:bvrV5.0.0.13R1.12.0forD3641-S1x:bd02/18/2021:br1.12:svnFUJITSU:pn:pvr:rvnFUJITSU:rnD3641-S1:rvrS26361-D3641-S1:cvnFUJITSU:ct3:cvr:sku: > dmi.product.family: ESPRIMO-FTS > dmi.sys.vendor: FUJITSU > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1953613/+subscriptions > > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1953613 Title: GPIO character device v1 API not enabled in kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1953613/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
