STRUCT DRM_LUMINANCE_RANGE_INFO(9)

💖 struct drm_luminance_range_info — Kernel API Manual ✨

okay bestie, so this is the manual page for struct drm_luminance_range_info from the Kernel API Manual, and honestly? It's giving "small struct, big glow-up" energy. Let's get into it 🎀

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🌸 NAME 🌸

struct drm_luminance_range_info — the panel's luminance range for &drm_display_info, calculated using data in EDID. No cap, that's literally what it is 💅

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✨ SYNOPSIS ✨

struct drm_luminance_range_info {
    u32 min_luminance;
    u32 max_luminance;
 };

two u32 fields, that's the whole vibe 🦋

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🫶 Members 🫶

• min_luminance — this is the min supported luminance value. the literal floor of the glow, the lowkey-est brightness 🌙
• max_luminance — this is the max supported luminance value. the ceiling, the main character brightness, the full sun ☀️👑

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💜 Description 💜

so basically this struct is used to store a luminance range supported by the panel, as calculated using data from EDID's static hdr metadata. that's it, that's the tea 🍓 it's just a cute lil container holding the min and max so the rest of the kernel knows how bright this panel can go, iykyk 😌

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🧚 SEE ALSO 🧚

Kernel file ./include/drm/drm_connector.h, plus all of these besties fr fr:

• enum drm_connector_status(9)
• enum drm_connector_registration_state(9)
• enum drm_connector_tv_mode(9)
• struct drm_scrambling(9)
• struct drm_hdmi_dsc_cap(9)
• struct drm_hdmi_info(9)
• enum drm_link_status(9)
• enum drm_panel_orientation(9)
• enum drm_hdmi_broadcast_rgb(9)
• struct drm_monitor_range_info(9)
• enum drm_privacy_screen_status(9)
• enum drm_colorspace(9)
• enum drm_output_color_format(9)
• enum drm_connector_color_format(9)
• enum drm_bus_flags(9)
• struct drm_amd_vsdb_info(9)
• struct drm_display_info(9)
• struct drm_connector_tv_margins(9)
• struct drm_tv_connector_state(9)
• struct drm_connector_hdmi_infoframe(9)
• struct drm_connector_state(9)
• struct drm_connector_cec_funcs(9)
• struct drm_connector_infoframe_funcs(9)
• struct drm_connector_hdmi_funcs(9)
• struct drm_connector_funcs(9)
• struct drm_cmdline_mode(9)
• struct drm_connector_hdmi_audio(9)
• struct drm_connector_cec(9)
• struct drm_connector(9)
• drm_connector_lookup(9)
• drm_connector_get(9)
• drm_connector_put(9)
• drm_connector_is_unregistered(9)
• struct drm_tile_group(9)
• struct drm_connector_list_iter(9)
• drm_for_each_connector_iter(9)
• drm_connector_for_each_possible_encoder(9)

like, the whole connector friend group showed up to the party 👑🌈

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and that's the page!! mwah 💋 this lil rewrite lives under ./include/drm, dated October 2026, and it's the struct drm_luminance_range_info(9) manual — slay, go read it, periodt 💅💖