On 2021-02-07 10:58:13 [+0100], David Runge wrote: > With 5.10.12-rt26 the controller still does not initialize at all > though (/dev/fw0 does not appear): > https://pkgbuild.com/~dvzrv/bugs/2021/01/linux-5.10.12-rt26-kernel.log So it is either config or chipset specific. Did you posted a link to your .config? > Best, > David > Sebastian