Re: [PATCH v6] platform/x86: Add wmi driver for Casper Excalibur laptops

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Hi,

On 7/13/24 6:35 PM, Mustafa Ekşi wrote:
> Hi, I apologize for the delay. I recently saw Carlos's patch and your
> reviews, so I improved my driver according to it and made it ready for
> another version.
> 
> I didn't include the documentation for the new zoned keyboard backlight
> naming since Carlos is going to do that. However, I changed the naming of
> corner led because it isn't affected when other zones' brightness changes.
> And one last reason to not name it kbd_zoned_backlight is the fact that it
> isn't on the keyboard, it's on the two corners of the laptop. I'm still not
> sure how to name it, so I named it 'backlight'.
> Here's a photo of the laptop: https://imgur.com/a/JEqMiGL

Thanks for the photo very helpful.

I see these corner LEDs actually illuminate the table, not the laptop
itself, a bit like ambilight on Philips television sets. According
to wikipedia the vendor neutral not trademarked name for this is
bias-lighting:

https://en.wikipedia.org/wiki/Bias_lighting

So lets name it "casper:rgb:biaslight", which I admittedly is a bit
weird, but backlight for LEDs which are not actually a backlight for
displays or keys is confusing, so IMHO biaslight is best.

Regards,

Hans


p.s.

I'm also doing a review of the patch itself, but I likely will not finish
that today.






> 
> Mustafa Ekşi (1):
>   platform/x86: Add wmi driver for Casper Excalibur laptops
> 
>  MAINTAINERS                       |   6 +
>  drivers/platform/x86/Kconfig      |  14 +
>  drivers/platform/x86/Makefile     |   1 +
>  drivers/platform/x86/casper-wmi.c | 656 ++++++++++++++++++++++++++++++
>  4 files changed, 677 insertions(+)
>  create mode 100644 drivers/platform/x86/casper-wmi.c
> 





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