<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Fan speed in idle at 40% with radeonsi and at 18% with catalyst" href="https://bugs.freedesktop.org/show_bug.cgi?id=73338#c66">Comment # 66</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Fan speed in idle at 40% with radeonsi and at 18% with catalyst" href="https://bugs.freedesktop.org/show_bug.cgi?id=73338">bug 73338</a> from <a class="email" href="mailto:martin.peres@ensi-bourges.fr" title="Martin Peres <martin.peres@ensi-bourges.fr>"> Martin Peres</a> <pre>(In reply to Alex Deucher from <a href="show_bug.cgi?id=73338#c64">comment #64</a>) > > As far as percent vs. rpm, I'm not sure which would be preferred. I think > the hwmon subsystem generally prefers rpm. Maybe add callbacks for both > percent and rpm and then check rdev->pm.fan_pulses_per_revolution. If it's > 0, expose it as a percent. if not, expose as rpm. Thoughts? Might be > worth asking on the hwmon mailing lists. No need to guess, everything is written here ;) <a href="https://www.kernel.org/doc/Documentation/hwmon/sysfs-interface">https://www.kernel.org/doc/Documentation/hwmon/sysfs-interface</a> pwm1 should expose the duty cycle and nothing else. If you also have a tachometer, expose it with fan1_input :) If you want to set the fan speed with RPM instead of the duty cycle, you'll need to use fan1_target. You may wonder what should happen if you set both pwm1 and fan1_target. Well, I would think that the latest you set should take precedence. Please try to stick to the document I provided, for the sake of having a common behaviour. I hope I helped a little on this ;)</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>