STRUCT SDCA_CHANNEL(9)

🌸 NAME 🌸

okay bestie, meet struct sdca_channel(9) — a single Channel with a Cluster. This one comes straight from the Kernel API Manual, and it's giving “tiny struct, very important audio lore” energy 💅✨.

✨ SYNOPSIS ✨

here's the whole shape, no cap:

       struct sdca_channel {
           int id;
           enum sdca_channel_purpose purpose;
           enum sdca_channel_relationship relationship;
        };

🎀 Members 🎀

• id — the Identifier used for addressing. it's literally how this Channel gets addressed, periodt 💖.
• purpose — Indicates the purpose of the Channel; usually this is to give semantic meaning to the audio, eg. voice, ultrasound. so it's the “what is this even for” member 🌈.
• relationship — Indicates the relationship of this Channel to others in the Cluster; often used to identify the physical position of the Channel, eg. left. it's the “where do you sit in the group chat” member, iykyk 🫶.

💖 SEE ALSO 💖

go look at these too, bestie 👑:

• Kernel file: ./include/sound/sdca_function.h
• enum sdca_function_type(9)
• struct sdca_init_write(9)
• SDCA_CTL_TYPE(9)
• SDCA_CTL_TYPE_S(9)
• enum sdca_messageoffset_range(9)
• enum sdca_ump_mode(9)
• enum sdca_ump_owner(9)
• enum sdca_it_controls(9)
• enum sdca_ot_controls(9)
• enum sdca_usage_range(9)
• enum sdca_dataport_selector_range(9)
• enum sdca_mu_controls(9)
• enum sdca_su_controls(9)
• enum sdca_fu_controls(9)
• enum sdca_volume_range(9)
• enum sdca_xu_controls(9)
• enum sdca_fdl_set_index_range(9)
• enum sdca_cs_controls(9)
• enum sdca_samplerateindex_range(9)
• enum sdca_cx_controls(9)
• enum sdca_pde_controls(9)
• enum sdca_requested_ps_range(9)
• enum sdca_ge_controls(9)
• enum sdca_selected_mode_range(9)
• enum sdca_detected_mode_values(9)
• enum sdca_spe_controls(9)
• enum sdca_cru_controls(9)
• enum sdca_udmpu_controls(9)
• enum sdca_mfpu_controls(9)
• enum sdca_smpu_controls(9)
• enum sdca_sapu_controls(9)
• enum sdca_ppu_controls(9)
• enum sdca_tg_controls(9)
• enum sdca_hide_controls(9)
• enum sdca_entity0_controls(9)
• enum sdca_control_datatype(9)
• enum sdca_access_mode(9)
• enum sdca_access_layer(9)
• struct sdca_control_range(9)
• struct sdca_control(9)
• enum sdca_terminal_type(9)
• enum sdca_connector_type(9)
• struct sdca_entity_iot(9)
• enum sdca_clock_type(9)
• struct sdca_entity_cs(9)
• enum sdca_pde_power_state(9)
• struct sdca_pde_delay(9)
• struct sdca_entity_pde(9)
• enum sdca_entity_type(9)
• struct sdca_ge_control(9)
• struct sdca_ge_mode(9)
• struct sdca_entity_ge(9)
• struct sdca_entity_hide(9)
• enum sdca_xu_reset_mechanism(9)
• struct sdca_entity_xu(9)
• struct sdca_entity(9)
• enum sdca_channel_purpose(9)
• enum sdca_channel_relationship(9)
• struct sdca_cluster(9)
• enum sdca_cluster_range(9)
• struct sdca_fdl_file(9)
• struct sdca_fdl_set(9)
• struct sdca_fdl_data(9)
• struct sdca_function_hid(9)
• struct sdca_function_data(9)

that's the whole page, bestie 💖. source/version is ./include/sound, dated October 2026 — mwah 💋✨.