On Fri, Apr 24, 2020 at 12:57 AM Lars <larsh@xxxxxxxxxx> wrote: > > This adds dual fan control for the following models: > P50, P51, P52, P70, P71, P72, P1 gen1, X1E gen1, P2 gen2, and X1E gen2. > > Both fans are controlled together as if they were a single fan. > > Tested on an X1 Extreme Gen1, an X1 Extreme Gen2, and a P50. > > The patch is defensive, it adds only specific supported machines, and falls > back to the old behavior if both fans cannot be controlled. > > Background: > I tested the BIOS default behavior on my X1E gen2 and both fans are always > changed together. So rather than adding controls for each fan, this controls > both fans together as the BIOS would do. > > This was inspired by a discussion on dual fan support for the thinkfan tool > [1]. > All BIOS ids are taken from there. The X1E gen2 id is verified on my machine. > > Thanks to GitHub users voidworker and civic9 for the earlier patches and BIOS > ids, and to users peter-stoll and sassman for testing the patch on their > machines. > > [1]: https://github.com/vmatare/thinkfan/issues/58 > > Signed-off-by: Lars <larsh@xxxxxxxxxx> One question though, is Lars your real name here? [1] [1]: https://www.kernel.org/doc/html/latest/process/submitting-patches.html#sign-your-work-the-developer-s-certificate-of-origin -- With Best Regards, Andy Shevchenko
