On Wed, 5 Feb 2025, Aditya Garg wrote: > > Sorry for being dense, but does that mean that it's either > > hid-appletb-bl or hid-apple, but never both to make a good user > > experience on those devices? > > > > If so, can you please point out what exactly is the reason? > > > > Either those have different VID/PID combination, and then it can be easily > > made conditional both in code and in runtime. > > Are we talking about conflicting VID/PID combinations, some of them > > needing current hid-apple, and some of them needing (in a mutually > > exclusive way) hid-appletb-bl? > > > > Just to clarify a bit more, > > The touchbar backlight device is 05ac:8102, in all the models with magic > backlight, that is, with as well as without touchbar. The MacBook Air > 2020 is the only model with this device but not having a touchbar. > > This device is responsible for both the touchbar brightness and the > keyboard backlight, the 0th interface being responsible for keyboard > backlight on Air and 1st on others. Ah, wow, ok, then it's indeed really messy. Thanks for the explanation. -- Jiri Kosina SUSE Labs
