dcss_scaler_gaussian_filter(9)

💅 dcss_scaler_gaussian_filter 💅

okay so bestie, we're in the Kernel API Manual, and today's main character is dcss_scaler_gaussian_filter(9) — she generates a gaussian prototype filter, no cap ✨

🌸 NAME 🌸

dcss_scaler_gaussian_filter — generate a gaussian prototype filter 💖

✨ SYNOPSIS ✨

here's the exact function signature, untouched, because we do not mess with code vibes:

       void dcss_scaler_gaussian_filter (int fc_q , bool use_5_taps , bool
       phase0_identity , int coef[][PSC_NUM_TAPS] );

🎀 ARGUMENTS 🎀

• fc_q — the fixed-point cutoff frequency, normalized to the range [0, 1] 🎚️
• use_5_taps — tells her whether to use 5 taps or 7 taps, choose your fighter 👑
• phase0_identity — whether to override phase 0 coefficients with an identity filter, lowkey important 🫶
• coef — the output filter coefficients 💅

🦋 SEE ALSO 🦋

• Kernel file ./drivers/gpu/drm/imx/dcss/dcss-scaler.c, plus mult_q(9), div_q(9), exp_approx_q(9), and dcss_scaler_filter_design(9) — go peek, iykyk 👀

mwah 💖 this page lives in the Kernel API Manual, with the source/version stamp ./drivers/gpu/drm/imx/dcss and date October 2026, starring dcss_scaler_gaussian_filter(9) — bye bestie! 🎀