OSX + Steam Controller

[Sunlis]

I've been away from KSP for a while, and noticed a news post about Steam Controller support. I tried loading up KSP on my Macbook, but whether I open it through Big Picture or the regular desktop Steam launcher, I cannot seem to get KSP to go into "Steam Controller mode". The Steamworks plugin is present in my plugins directory, and the controller is plugged in and light up (and working with the default "desktop" mappings).

Is there some trick to this, or does it simply not work on OSX?

[sal_vager]

It should work but I'm unable to test it (damn you Santa, coal again!), are you getting any error messages in the KSP.log ?

[Sunlis]

I got it working by setting Steam to use the beta release, which then updated the firmware on the controller. The only limitation (which seems to be an issue with Steam, not KSP) is that the Left Ctrl and Left Shift bindings don't seem to work, meaning I can't incrementally control the throttle. Setting a secondary key for those in KSP and changing the controller bindings to use the secondary keys works.