Question about sRGB framebuffer support

Hello all

I am currently working on DRM/KMS driver for Fresco Logic FL2000 USB display controller [1]. I have already implemented a POC driver [2] which is working for me, although there are still plenty of things to improve or fix, of course.

So far I have one thing that I somehow cannot find in DRM/KMS documentation or existing drivers: how to tell the system that HW expects sRGB (i.e. non-linear) color encoding in framebuffers? This is a HW limitation that I cannot influence by configuration.

Any pointers are greatly appreciated.

[1] www.frescologic.com/product/single/fl2000 [2] https://github.com/klogg/fl2000_drm

Best regards, -- Artem