ENUM DRM_COLORSPACE(9)

🎨 enum drm_colorspace(9) 🎨

okay so bestie, welcome to the Kernel API Manual — section 9 — and we're talking about enum drm_colorspace, aka the color space enum. it's giving DRM colorimetry realness, and honestly? iconic. 💅✨

💖 NAME 💖

enum drm_colorspace — color space. 🎀

📦 SYNOPSIS 📦

here's the whole enum, bestie — every single member exactly as it appears, no cap:

enum drm_colorspace {
    DRM_MODE_COLORIMETRY_DEFAULT ,
    DRM_MODE_COLORIMETRY_NO_DATA ,
    DRM_MODE_COLORIMETRY_SMPTE_170M_YCC ,
    DRM_MODE_COLORIMETRY_BT709_YCC ,
    DRM_MODE_COLORIMETRY_XVYCC_601 ,
    DRM_MODE_COLORIMETRY_XVYCC_709 ,
    DRM_MODE_COLORIMETRY_SYCC_601 ,
    DRM_MODE_COLORIMETRY_OPYCC_601 ,
    DRM_MODE_COLORIMETRY_OPRGB ,
    DRM_MODE_COLORIMETRY_BT2020_CYCC ,
    DRM_MODE_COLORIMETRY_BT2020_RGB ,
    DRM_MODE_COLORIMETRY_BT2020_YCC ,
    DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65 ,
    DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER ,
    DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED ,
    DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT ,
    DRM_MODE_COLORIMETRY_BT601_YCC ,
    DRM_MODE_COLORIMETRY_COUNT

};

💅 Constants 💅

• DRM_MODE_COLORIMETRY_DEFAULT — driver specific behavior. iykyk.
• DRM_MODE_COLORIMETRY_NO_DATA — driver specific behavior. same vibe.
• DRM_MODE_COLORIMETRY_SMPTE_170M_YCC — (HDMI) SMPTE ST 170M colorimetry format. slay.
• DRM_MODE_COLORIMETRY_BT709_YCC — (HDMI, DP) ITU-R BT.709 colorimetry format. classic.
• DRM_MODE_COLORIMETRY_XVYCC_601 — (HDMI, DP) xvYCC601 colorimetry format.
• DRM_MODE_COLORIMETRY_XVYCC_709 — (HDMI, DP) xvYCC709 colorimetry format.
• DRM_MODE_COLORIMETRY_SYCC_601 — (HDMI, DP) sYCC601 colorimetry format.
• DRM_MODE_COLORIMETRY_OPYCC_601 — (HDMI, DP) opYCC601 colorimetry format.
• DRM_MODE_COLORIMETRY_OPRGB — (HDMI, DP) opRGB colorimetry format.
• DRM_MODE_COLORIMETRY_BT2020_CYCC — (HDMI, DP) ITU-R BT.2020 Y'c C'bc C'rc (constant luminance) colorimetry format. fancy.
• DRM_MODE_COLORIMETRY_BT2020_RGB — (HDMI, DP) ITU-R BT.2020 R' G' B' colorimetry format.
• DRM_MODE_COLORIMETRY_BT2020_YCC — (HDMI, DP) ITU-R BT.2020 Y' C'b C'r colorimetry format.
• DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65 — (HDMI) SMPTE ST 2113 P3D65 colorimetry format.
• DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER — (HDMI) SMPTE ST 2113 P3DCI colorimetry format.
• DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED — (DP) RGB wide gamut fixed point colorimetry format.
• DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT — (DP) RGB wide gamut floating point (scRGB (IEC 61966-2-2)) colorimetry format.
• DRM_MODE_COLORIMETRY_BT601_YCC — (DP) ITU-R BT.601 colorimetry format. The DP spec does not say whether this is the 525 or the 625 line version. mysterious much? 🙈
• DRM_MODE_COLORIMETRY_COUNT — Not a valid value; merely used four counting — not a real color space, bestie, just a counter. 💀

🌸 Description 🌸

okay so this enum is a consolidated colorimetry list supported by HDMI and DP protocol standard. The respective connectors will register a property with the subset of this list (supported by that respective protocol). Userspace will set the colorspace through a colorspace property which will be created and exposed to userspace. ✨

DP definitions come from the DP v2.0 spec; HDMI definitions come from the CTA-861-H spec. periodt. 🦋

🔗 SEE ALSO 🔗

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

• 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)
• struct drm_luminance_range_info(9)
• enum drm_privacy_screen_status(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)

mwah 💋 — signed off from ./include/drm, October 2026, in the Kernel API Manual — enum drm_colorspace(9), stay colorful bestie 🦋💜