STRUCT SUN8I_LAYER_CFG(9)

💖 struct sun8i_layer_cfg(9) 💖

okay so bestie, welcome to the Kernel API Manual page for struct sun8i_layer_cfg(9) — it's giving layer configuration struct that wants you to know every field, and we're gonna walk through it together, no cap ✨

🌸 NAME 🌸

struct sun8i_layer_cfg — layer configuration. that's the whole main character energy of this page 💅

✨ SYNOPSIS ✨

       struct sun8i_layer_cfg {
           unsigned int    vi_scaler_num;
           int scaler_mask;
           int ccsc;
           unsigned int    de_type;
           unsigned int    scanline_yuv;
           unsigned int    de2_fcc_alpha : 1;
        };

🎀 Members 🎀

• vi_scaler_num — Number of VI scalers. Used on DE2 and DE3. periodt 💖
• scaler_mask — bitmask which tells which channel supports scaling. First, scaler supports for VI channels is defined and after that, scaler support for UI channels. For example, if mixer has 2 VI channels without scaler and 2 UI channels with scaler, bitmask would be 0xC. iconic example, fr fr 🔥
• ccsc — select set of CCSC base addresses from the enumeration above. iykyk 🌈
• de_type — sun8i_mixer_type enum representing the display engine generation. main character enum energy 👑
• de2_fcc_alpha — use FCC for missing DE2 VI alpha capability. Most DE2 cores has FCC. If number of VI planes is one, enable this. noted bestie 🫶

and quick vibe check: scanline_yuv is right there in the struct synopsis, but the manpage's Members list doesn't give it its own write-up — so we're not gonna invent a description for it, ngl 🙈

🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/sun4i/sun8i_mixer.h
• struct sun8i_mixer_cfg(9)

that's the page, bestie 💜 — source/version energy: ./drivers/gpu/drm/sun4i, dated October 2026, for struct sun8i_layer_cfg(9). slay ✨