On Friday 05 January 2024 21:04:59 Andy Shevchenko wrote: > On Fri, Jan 5, 2024 at 8:37 PM Andy Shevchenko > <andy.shevchenko@xxxxxxxxx> wrote: > > On Fri, Jan 5, 2024 at 6:34 PM Hans de Goede <hdegoede@xxxxxxxxxx> wrote: > > > On 12/24/23 23:03, Pali Rohár wrote: > > > > On Sunday 24 December 2023 22:36:21 Hans de Goede wrote: > > ... > > > > But AFAIK / AFAICT there are no actual userspace consumers of > > > /dev/freefall so removing it should not be an issue. > > > > IIRC/AFAIK there is at least one (simple) computer game using it as a joystick. > > Okay, I can't google for it and now I realised that it was my x60s, > which has no freefall, but another interface to it. In any case the > side effect of that googling is this (maybe more, I just took this one > as example): > https://github.com/linux-thinkpad/hdapsd/blob/master/README.md > > So, dropping it will break at least this tool. > > -- > With Best Regards, > Andy Shevchenko Yes, this is that correct one. I forget the name of this daemon. Just to note /dev/freefall does not provide axes state, it just send signal to process when interrupt is triggered. Process than park disk heads. Axes state are/were exported throw /dev/js* interface and those games uses just js interface. I remember Tux Racer. Interrupt on HP and Dell is triggered only when laptop fall is detected, so games did not used it (hopefully!)
