CONFIG_DRM_DISPLAY_HDMI_CEC_HELPER (not configurable)
configname: CONFIG_DRM_DISPLAY_HDMI_CEC_HELPER
Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)
└─>DRM_DISPLAY_HDMI_CEC_HELPER
In linux kernel since version 5.4.301 (release Date: 2025-10-29)
DRM display helpers for HDMI CEC implementation.