Hello everyone,
I am new to DRM and linux, I started reading developers guide and research on my own.
I don't know where to start on how to communicate the DP helper functions (drm_dp_dpcd_read, drm_dp_dpcd_readb, drm_dp_dpcd_write, drm_dp_dpcd_writeb), what will I include(#include<sample.h>) in my main program. I already have drm in my setup(kernel version:4.4.21-69), I also have libdrm-2.4.92 API , the problem is I don't really have an idea on how use it.
My main objective is I want to read and write brightness/backlight level on DP connections.
Is it possible to use only the libdrm api to import DP helper functions?if yes how?
Maybe someone can help/guide me on this?
Appreciate your help.
Regards,
Lester
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