Hi! > > > There is a slight difference between mouse support and LEDs on your > > > keyboard. The former is actually required to bring up the machine and to > > > use it, the latter is nice to have. > > > > But that's not the difference that matters. Linux is not microkernel, > > and is trying to provide hardware abstractions. (Except for printers, > > I guess that's because printers are often network devices). > > > > Besides, mouse was not required to bring up a machine "back then". > > > > Besides, > > > > 1) using those keyboards in dark room without backlight is hard, > > because their labels are translucent and not having enough contrast. > > > > 2) rainbow effects make people ill. > > And I agree with you here. And that's also why I agree with Werner's > plan: have a minimum support in kernel for that with the already > supported LED class, which is supported by UPower and others, and let > the ones who want the fancy effects be in charge of their mess. But the patch being proposed does not match the this description, right? And for hardware I seen, "minimum driver" you describe would be already 90% of the full driver. (We can just use fbdev interface...) Anyway, lets do it. I have rgb keyboard, you have few, and we have Tuxedocomputers with machines where driver can't live in userspace. If you have working driver, lets see it. I have posted my copy, but I hae problem where keyboard functionality stops working when its loaded. Can you help? Then we can see how much of the driver is required for basic functionality. I suspect it will be fairly easy to turn it into "full" driver at that point. > > Note how we have drivers for audio, LEDs, cameras, dunno, iio sensors, > > none of that is required to bring system up. > > > > We need driver for the WMI stuff in kernel. And that point it should > > be pretty clear proper driver/subsystem should be done. > > Yes, and again, I never said we need to provide WMI to userspace. Good. > What I want is: > - provide a minimum support on Linux using already existing APIs (LED > class) > - allow crazy people to do their thing if they want to have a rainbow > initiated by every key press > - ensure the minimum support of the LED class is not messed up when > people start using the HID LampArray API. > > HID LampArray is a ratified standard by a few hardware makers already[0] > (Acer, Asus, HP, Logitech, Razer, SteelSeries and Twinkly apparently). I have yet to see HID LampArray device. Best regards, Pavel -- People of Russia, stop Putin before his war on Ukraine escalates.
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