STRUCT RKISP1_CIF_ISP_GAMMA_CURVE_X_AXIS_PNTS(9)

💅 struct rkisp1_cif_isp_gamma_curve_x_axis_pnts(9) — a Kernel API Manual moment ✨

okay so bestie, welcome to the Kernel API Manual 🎀 — yes the whole thing, and today's main character is struct rkisp1_cif_isp_gamma_curve_x_axis_pnts. it's giving niche-but-important, iykyk 🦋

✨ NAME ✨

struct rkisp1_cif_isp_gamma_curve_x_axis_pnts — the De-Gamma Curve definition's x increments (aka the sampling points, bestie 💖). so like, gamma_dx0 handles the lower samples (1-8), and gamma_dx1 handles the higher samples (9-16). the reset values for BOTH fields are 0x44444444, which lowkey means each sample sits 4 units away from the one before it on the x-axis. no cap, that's literally it 🫶

🌸 SYNOPSIS 🌸

struct rkisp1_cif_isp_gamma_curve_x_axis_pnts {
    __u32 gamma_dx0;
    __u32 gamma_dx1;
 };

🎀 Members 🎀

• gamma_dx0 — gamma curve sample points definitions, periodt. Bits 0:2 are for sample 1. Bit 3 is unused. Bits 4:6 are for sample 2. bit 7 unused ... Bits 28:30 are for sample 8. Bit 31 unused 👑
• gamma_dx1 — gamma curve sample points definitions, again, but make it the second half 💅. Bits 0:2 are for sample 9. Bit 3 is unused. Bits 4:6 are for sample 10. bit 7 unused ... Bits 28:30 are for sample 16. Bit 31 unused ⭐

🦋 SEE ALSO 🦋

so the Kernel file is ./include/uapi/linux/rkisp1-config.h 📁 and honestly the whole friend group shows up here — go say hi to all of them:

• enum rkisp1_cif_isp_version(9)
• enum rkisp1_cif_isp_exp_ctrl_autostop(9)
• enum rkisp1_cif_isp_exp_meas_mode(9)
• struct rkisp1_cif_isp_window(9)
• struct rkisp1_cif_isp_bls_fixed_val(9)
• struct rkisp1_cif_isp_bls_config(9)
• struct rkisp1_cif_isp_dpcc_methods_config(9)
• struct rkisp1_cif_isp_dpcc_config(9)
• struct rkisp1_cif_isp_gamma_corr_curve(9)
• struct rkisp1_cif_isp_sdg_config(9)
• struct rkisp1_cif_isp_lsc_config(9)
• struct rkisp1_cif_isp_ie_config(9)
• struct rkisp1_cif_isp_cproc_config(9)
• struct rkisp1_cif_isp_awb_meas_config(9)
• struct rkisp1_cif_isp_awb_gain_config(9)
• struct rkisp1_cif_isp_flt_config(9)
• struct rkisp1_cif_isp_bdm_config(9)
• struct rkisp1_cif_isp_ctk_config(9)
• struct rkisp1_cif_isp_goc_config(9)
• struct rkisp1_cif_isp_hst_config(9)
• struct rkisp1_cif_isp_aec_config(9)
• struct rkisp1_cif_isp_afc_config(9)
• enum rkisp1_cif_isp_dpf_gain_usage(9)
• enum rkisp1_cif_isp_dpf_rb_filtersize(9)
• enum rkisp1_cif_isp_dpf_nll_scale_mode(9)
• struct rkisp1_cif_isp_dpf_nll(9)
• struct rkisp1_cif_isp_dpf_rb_flt(9)
• struct rkisp1_cif_isp_dpf_g_flt(9)
• struct rkisp1_cif_isp_dpf_gain(9)
• struct rkisp1_cif_isp_dpf_config(9)
• struct rkisp1_cif_isp_dpf_strength_config(9)
• struct rkisp1_cif_isp_isp_other_cfg(9)
• struct rkisp1_cif_isp_isp_meas_cfg(9)
• struct rkisp1_params_cfg(9)
• struct rkisp1_cif_isp_compand_bls_config(9)
• struct rkisp1_cif_isp_compand_curve_config(9)
• struct rkisp1_cif_isp_wdr_tone_curve(9)
• struct rkisp1_cif_isp_wdr_iref_config(9)
• struct rkisp1_cif_isp_wdr_config(9)
• enum rkisp1_cif_isp_cac_v_clip_mode(9)
• struct rkisp1_cif_isp_cac_config(9)
• struct rkisp1_cif_isp_awb_meas(9)
• struct rkisp1_cif_isp_awb_stat(9)
• struct rkisp1_cif_isp_bls_meas_val(9)
• struct rkisp1_cif_isp_ae_stat(9)
• struct rkisp1_cif_isp_af_meas_val(9)
• struct rkisp1_cif_isp_af_stat(9)
• struct rkisp1_cif_isp_hist_stat(9)
• struct rkisp1_cif_isp_stat(9)
• struct rkisp1_stat_buffer(9)
• enum rkisp1_ext_params_block_type(9)
• rkisp1_ext_params_block_header(9)
• struct rkisp1_ext_params_bls_config(9)
• struct rkisp1_ext_params_dpcc_config(9)
• struct rkisp1_ext_params_sdg_config(9)
• struct rkisp1_ext_params_lsc_config(9)
• struct rkisp1_ext_params_awb_gain_config(9)
• struct rkisp1_ext_params_flt_config(9)
• struct rkisp1_ext_params_bdm_config(9)
• struct rkisp1_ext_params_ctk_config(9)
• struct rkisp1_ext_params_goc_config(9)
• struct rkisp1_ext_params_dpf_config(9)
• struct rkisp1_ext_params_dpf_strength_config(9)
• struct rkisp1_ext_params_cproc_config(9)
• struct rkisp1_ext_params_ie_config(9)
• struct rkisp1_ext_params_awb_meas_config(9)
• struct rkisp1_ext_params_hst_config(9)
• struct rkisp1_ext_params_aec_config(9)
• struct rkisp1_ext_params_afc_config(9)
• struct rkisp1_ext_params_compand_bls_config(9)
• struct rkisp1_ext_params_compand_curve_config(9)
• struct rkisp1_ext_params_wdr_config(9)
• struct rkisp1_ext_params_cac_config(9)
• enum rkisp1_ext_param_buffer_version(9)
• struct rkisp1_ext_params_cfg(9)

and that's the whole thing bestie, you ate that 🍓💜 — this iconic little page lives in ./include/uapi/linux, dated October 2026, and it's filed under struct rkis..._x_axis_pnts(9) in the Kernel API Manual. slay, go read the header file now 🌈⭐