STRUCT IPU3_UAPI_CSC_MAT_CONFIG(9)

🌸 NAME 🌸

struct ipu3_uapi_csc_mat_config — Color space conversion matrix config

Okay so this is from the Kernel API Manual, bestie, and the page title is struct ipu3...c_mat_config(9) — we’re doing color-space math today, and yes it’s giving main-character matrix energy. 💅✨

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🎀 SYNOPSIS 🎀

struct ipu3_uapi_csc_mat_config {
    __s16 coeff_c11;
    __s16 coeff_c12;
    __s16 coeff_c13;
    __s16 coeff_b1;
    __s16 coeff_c21;
    __s16 coeff_c22;
    __s16 coeff_c23;
    __s16 coeff_b2;
    __s16 coeff_c31;
    __s16 coeff_c32;
    __s16 coeff_c33;
    __s16 coeff_b3;
};

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💅 Members 💅

• coeff_c11 — Conversion matrix value, format s0.14, range [-16384, 16383].
• coeff_c12 — Conversion matrix value, format s0.14, range [-8192, 8191].
• coeff_c13 — Conversion matrix value, format s0.14, range [-16384, 16383].
• coeff_b1 — Bias 3x1 coefficient, s13.0 range [-8192, 8191].
• coeff_c21 — Conversion matrix value, format s0.14, range [-16384, 16383].
• coeff_c22 — Conversion matrix value, format s0.14, range [-8192, 8191].
• coeff_c23 — Conversion matrix value, format s0.14, range [-16384, 16383].
• coeff_b2 — Bias 3x1 coefficient, s13.0 range [-8192, 8191].
• coeff_c31 — Conversion matrix value, format s0.14, range [-16384, 16383].
• coeff_c32 — Conversion matrix value, format s0.14, range [-8192, 8191].
• coeff_c33 — Conversion matrix value, format s0.14, range [-16384, 16383].
• coeff_b3 — Bias 3x1 coefficient, s13.0 range [-8192, 8191].

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✨ Description ✨

So the whole vibe is: transform each pixel from RGB to YUV by applying the pixel’s values through a 3x3 matrix and then adding an optional bias 3x1 vector. Y is brightness/luminance, and UV is the chroma part — the source literally writes UV -chroma, and the exact token to keep is -chroma (hyphen and all, no erasing it 🙈).

Here are the default values for the matrix:

4898,   9617,  1867, 0, -2410, -4732,  7143, 0, 10076, -8437, -1638, 0,

(i.e. for real number 0.299, 0.299 * 2^14 becomes 4898.)

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🦋 SEE ALSO 🦋

• Kernel file ./drivers/staging/media/ipu3/include/uapi/intel-ipu3.h
• struct ipu3_uapi_grid_config(9)
• struct ipu3_uapi_awb_set_item(9)
• struct ipu3_uapi_awb_raw_buffer(9)
• struct ipu3_uapi_awb_config_s(9)
• struct ipu3_uapi_awb_config(9)
• struct ipu3_uapi_ae_raw_buffer(9)
• struct ipu3_uapi_ae_raw_buffer_aligned(9)
• struct ipu3_uapi_ae_grid_config(9)
• struct ipu3_uapi_ae_weight_elem(9)
• struct ipu3_uapi_ae_ccm(9)
• struct ipu3_uapi_ae_config(9)
• struct ipu3_uapi_af_filter_config(9)
• struct ipu3_uapi_af_raw_buffer(9)
• struct ipu3_uapi_af_config_s(9)
• struct ipu3_uapi_awb_fr_raw_buffer(9)
• struct ipu3_uapi_awb_fr_config_s(9)
• struct ipu3_uapi_4a_config(9)
• struct ipu3_uapi_bubble_info(9)
• struct ipu3_uapi_ff_status(9)
• struct ipu3_uapi_stats_3a(9)
• struct ipu3_uapi_bnr_static_config_wb_gains_config(9)
• struct ipu3_uapi_bnr_static_config_wb_gains_thr_config(9)
• struct ipu3_uapi_bnr_static_config_thr_coeffs_config(9)
• struct ipu3_uapi_bnr_static_config_thr_ctrl_shd_config(9)
• struct ipu3_uapi_bnr_static_config_opt_center_config(9)
• struct ipu3_uapi_bnr_static_config_lut_config(9)
• struct ipu3_uapi_bnr_static_config_bp_ctrl_config(9)
• struct ipu3_uapi_bnr_static_config_dn_detect_ctrl_config(9)
• struct ipu3_uapi_bnr_static_config_opt_center_sqr_config(9)
• struct ipu3_uapi_bnr_static_config(9)
• struct ipu3_uapi_bnr_static_config_green_disparity(9)
• struct ipu3_uapi_dm_config(9)
• struct ipu3_uapi_ccm_mat_config(9)
• struct ipu3_uapi_gamma_corr_ctrl(9)
• struct ipu3_uapi_gamma_corr_lut(9)
• struct ipu3_uapi_gamma_config(9)
• struct ipu3_uapi_cds_params(9)
• struct ipu3_uapi_shd_grid_config(9)
• struct ipu3_uapi_shd_general_config(9)
• struct ipu3_uapi_shd_black_level_config(9)
• struct ipu3_uapi_shd_config_static(9)
• struct ipu3_uapi_shd_lut(9)
• struct ipu3_uapi_shd_config(9)
• struct ipu3_uapi_iefd_cux2(9)
• struct ipu3_uapi_iefd_cux6_ed(9)
• struct ipu3_uapi_iefd_cux2_1(9)
• struct ipu3_uapi_iefd_cux4(9)
• struct ipu3_uapi_iefd_cux6_rad(9)
• struct ipu3_uapi_yuvp1_iefd_cfg_units(9)
• struct ipu3_uapi_yuvp1_iefd_config_s(9)
• struct ipu3_uapi_yuvp1_iefd_control(9)
• struct ipu3_uapi_sharp_cfg(9)
• struct ipu3_uapi_far_w(9)
• struct ipu3_uapi_unsharp_cfg(9)
• struct ipu3_uapi_yuvp1_iefd_shrp_cfg(9)
• struct ipu3_uapi_unsharp_coef0(9)
• struct ipu3_uapi_unsharp_coef1(9)
• struct ipu3_uapi_yuvp1_iefd_unshrp_cfg(9)
• struct ipu3_uapi_radial_reset_xy(9)
• struct ipu3_uapi_radial_reset_x2(9)
• struct ipu3_uapi_radial_reset_y2(9)
• struct ipu3_uapi_radial_cfg(9)
• struct ipu3_uapi_rad_far_w(9)
• struct ipu3_uapi_cu_cfg0(9)
• struct ipu3_uapi_cu_cfg1(9)
• struct ipu3_uapi_yuvp1_iefd_rad_cfg(9)
• struct ipu3_uapi_vss_lut_x(9)
• struct ipu3_uapi_vss_lut_y(9)
• struct ipu3_uapi_yuvp1_iefd_vssnlm_cfg(9)
• struct ipu3_uapi_yuvp1_iefd_config(9)
• struct ipu3_uapi_yuvp1_yds_config(9)
• struct ipu3_uapi_yuvp1_chnr_enable_config(9)
• struct ipu3_uapi_yuvp1_chnr_coring_config(9)
• struct ipu3_uapi_yuvp1_chnr_sense_gain_config(9)
• struct ipu3_uapi_yuvp1_chnr_iir_fir_config(9)
• struct ipu3_uapi_yuvp1_chnr_config(9)
• struct ipu3_uapi_yuvp1_y_ee_nr_lpf_config(9)
• struct ipu3_uapi_yuvp1_y_ee_nr_sense_config(9)
• struct ipu3_uapi_yuvp1_y_ee_nr_gain_config(9)
• struct ipu3_uapi_yuvp1_y_ee_nr_clip_config(9)
• struct ipu3_uapi_yuvp1_y_ee_nr_frng_config(9)
• struct ipu3_uapi_yuvp1_y_ee_nr_diag_config(9)
• struct ipu3_uapi_yuvp1_y_ee_nr_fc_coring_config(9)
• struct ipu3_uapi_yuvp1_y_ee_nr_config(9)
• struct ipu3_uapi_yuvp2_tcc_gen_control_static_config(9)
• struct ipu3_uapi_yuvp2_tcc_macc_elem_static_config(9)
• struct ipu3_uapi_yuvp2_tcc_macc_table_static_config(9)
• struct ipu3_uapi_yuvp2_tcc_inv_y_lut_static_config(9)
• struct ipu3_uapi_yuvp2_tcc_gain_pcwl_lut_static_config(9)
• struct ipu3_uapi_yuvp2_tcc_r_sqr_lut_static_config(9)
• struct ipu3_uapi_yuvp2_tcc_static_config(9)
• struct ipu3_uapi_anr_transform_config(9)
• struct ipu3_uapi_anr_stitch_pyramid(9)
• struct ipu3_uapi_anr_stitch_config(9)
• struct ipu3_uapi_anr_config(9)
• struct ipu3_uapi_acc_param(9)
• struct ipu3_uapi_isp_lin_vmem_params(9)
• struct ipu3_uapi_isp_tnr3_vmem_params(9)
• struct ipu3_uapi_isp_tnr3_params(9)
• struct ipu3_uapi_isp_xnr3_vmem_params(9)
• struct ipu3_uapi_xnr3_alpha_params(9)
• struct ipu3_uapi_xnr3_coring_params(9)
• struct ipu3_uapi_xnr3_blending_params(9)
• struct ipu3_uapi_isp_xnr3_params(9)
• struct ipu3_uapi_obgrid_param(9)
• struct ipu3_uapi_flags(9)
• struct ipu3_uapi_params(9)

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Cute sign-off time, bestie 🫶: source/version is ./drivers/staging/media/ipu3/i..., dated October 2026, and the page is struct ipu3...c_mat_config(9). That’s the whole manpage, no cap. 💖🎀