STRUCT IPU3_UAPI_YUVP1_YDS_CONFIG(9)

✨ struct ipu3_uapi_yuvp1_yds_config(9) ✨

okay so this page is from the Kernel API Manual, and it's all about struct ipu3_uapi_yuvp1_yds_config — the Y Down-Sampling config, bestie. it's giving very much "tiny struct, very specific job" energy and honestly? we respect it 💅

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🌸 NAME 🌸

struct ipu3_uapi_yuvp1_yds_config — Y Down-Sampling config. that's literally it, that's the whole name section, no notes 🎀

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🦋 SYNOPSIS 🦋

here's the struct in all its bitfield-y glory — copy it exactly, don't touch a single colon:

struct ipu3_uapi_yuvp1_yds_config {
    __u32 c00:2;
    __u32 c01:2;
    __u32 c02:2;
    __u32 c03:2;
    __u32 c10:2;
    __u32 c11:2;
    __u32 c12:2;
    __u32 c13:2;
    __u32 norm_factor:5;
    __u32 reserved0:4;
    __u32 bin_output:1;
    __u32 reserved1:6;
 };

look at all those :2 bitfields. tiny. precious. iconic. 🫶

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💖 Members 💖

okay so every single field, one by one, with the vibes attached but the numbers untouched:

• c00 — range [0, 3], default 0x0
• c01 — range [0, 3], default 0x1
• c02 — range [0, 3], default 0x1
• c03 — range [0, 3], default 0x0
• c10 — range [0, 3], default 0x0
• c11 — range [0, 3], default 0x1
• c12 — range [0, 3], default 0x1
• c13 — range [0, 3], default 0x0

that's the 4x2 coefficient crew right there, all hanging out with their little 2-bit lives 🧚

• norm_factor — Normalization factor, range [0, 4], default 2. and the mapping? literally memorize it:
  • 0 — divide by 1
  • 1 — divide by 2
  • 2 — divide by 4
  • 3 — divide by 8
  • 4 — divide by 16

the way it scales by powers of two, we love a consistent queen ✨

• reserved0 — reserved. hands off, bestie 🙈
• bin_output — Down sampling on Luma channel in two optional modes:
  • 0 — Bin output 4.2.0 (default)
  • 1 — output 4.2.2

pick your mode, both are valid, no cap 🔥

• reserved1 — reserved. also hands off 💀

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🌈 Description 🌈

Above are 4x2 filter coefficients for chroma output downscaling. that's the whole description and honestly it said what it said 🎀 (yes, chroma output downscaling — that's what the page says, we're not questioning it, we're just reporting it)

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👑 SEE ALSO 👑

buckle up bestie, this list is LONG and we are NOT skipping a single one of these absolute main characters ⭐

• 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_csc_mat_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_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)

like. that's the whole IPU3 extended family reunion and we got an invite 🎀✨

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and that's the page, bestie 💜 this one came from ./drivers/staging/media/ipu3/i… and it's dated October 2026 — go forth and down-sample those Ys responsibly, mwah 🫶🌸