On Mon, Nov 22, 2021 at 9:00 PM James Nugen <jnugen@xxxxxxxxx> wrote: > > Hello, > > I'm getting a weird error when trying to access GPIOs from my machine. > The "gpioinfo" command is returning this error message: > "gpioinfo: error creating line iterator: Invalid argument" > This happens as a regular user and as root (via sudo). > "gpioget" returns a similar error. > "gpiodetect" works and finds two devices. What's the output of `gpiodetect`? > The machine is an Intel NUC running Ubuntu 20.04. > Here is the "uname" output: > Linux nuc 5.11.0-38-generic #42~20.04.1-Ubuntu SMP Tue Sep 28 20:41:07 > UTC 2021 x86_64 x86_64 x86_64 GNU/Linux > > The installed version of "libgpiod" is v1.4,1. > I tried the latest version (v1.6.3) and got the same errors. Is it possible to try the v5.15 kernel on your side? -- With Best Regards, Andy Shevchenko