Screen brightness

[natsgo]

Hello,

First of all great work. Everything is easier vs the stock Creality UI.

I am running a KE and the screen brightness is on 100%. I hope you can add a setting to adust screen brightness.

Thanks.

[ballaswag]

Brightness adjustment is one of my todos.

[natsgo]

Thank you sir.

[consp]

Old issue but since I added it for the ff5m: 601736d it can be used as a reference.

The ff5m needs special ioctl's to alter the brightness so it might/might not be portable but the general idea is the same.

We did ioctl and added it to fbdev as a patch since that's where all ioctls happen now. Depending on how well the systems implement brightness: it's already a mess on laptop's and I would guess it's all custom ioctl's for embedded systems and heavily depends on the kernel display driver. If it uses a sunxi device as a bonus it also depends on the kernel version used since they changed the ioctl's in the 5.x vs the 4.x.