drm_crtc_fill_gamma_565(9)

🌈 drm_crtc_fill_gamma_565(9) — Kernel API Manual 💅

okay so bestie, welcome to the drm_crtc_fill_gamma_565 page, aka the little kernel function that hands your display a default gamma ramp for RGB565-ish formats ✨ no cap, it's a whole vibe.

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🌸 SYNOPSIS 🌸

void drm_crtc_fill_gamma_565 (struct drm_crtc *crtc ,
drm_crtc_set_lut_func set_gamma );

literally that's the whole signature, she's compact and she knows it 🎀

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✨ ARGUMENTS ✨

• crtc — the CRTC that's doing the displaying, aka the main character actually putting pixels on your screen 👑
• set_gamma — the callback that programs the hardware gamma LUT, the little worker bee that makes it real 🐝

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💖 DESCRIPTION 💖

Programs a default gamma ramp to hardware. that's it, that's the whole job — she fills in the gamma, she sends it to the hardware, she slays 💅

fr fr, this is the "just give me something sane as a starting point" function. it's giving low-effort-but-iconic.

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🦋 SEE ALSO 🦋

like, go read these too, they're all part of the same friend group:

• Kernel file ./drivers/gpu/drm/drm_color_mgmt.c overview(9)
• drm_color_ctm_s31_32_to_qm_n(9)
• drm_crtc_enable_color_mgmt(9)
• drm_mode_crtc_set_gamma_size(9)
• drm_crtc_supports_legacy_gamma(9)
• drm_crtc_legacy_gamma_set(9)
• drm_mode_gamma_set_ioctl(9)
• drm_mode_gamma_get_ioctl(9)
• drm_get_color_encoding_name(9)
• drm_get_color_range_name(9)
• drm_plane_create_color_properties(9)
• drm_color_lut_check(9)
• drm_crtc_load_gamma_888(9)
• drm_crtc_load_gamma_565_from_888(9)
• drm_crtc_load_gamma_555_from_888(9)
• drm_crtc_fill_gamma_888(9)
• drm_crtc_fill_gamma_555(9)
• drm_crtc_load_palette_8(9)
• drm_crtc_fill_palette_332(9)
• drm_crtc_fill_palette_8(9)
• drm_color_lut32_check(9)

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aaaand that's the page bestie 🫶 this lil drop comes to you from ./drivers/gpu/drm, dated October 2026 — screenshot it, frame it, put it on your fridge, it's iconic ✨💜