STRUCT SDCA_ENTITY_IOT(9)

💅 struct sdca_entity_iot — bestie edition

okay so this is a page from the Kernel API Manual (yes, the kernel, we're fancy now) and it's all about struct sdca_entity_iot, which is literally just the information that's specific to Input/Output Entities. no cap, that's the whole vibe. 🎀

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✨ SYNOPSIS ✨

struct sdca_entity_iot {
    struct sdca_entity *clock;
    enum sdca_terminal_type type;
    enum sdca_connector_type connector;
    int reference;
    int num_transducer;
    bool is_dataport;
 };

like, look at her. she's giving "small struct, big responsibilities" energy. 🔥

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🌸 Members 🌸

okay bestie, field-by-field, let's go, no skipping, we don't do that here 💖

• clock — a pointer to the Entity that's out here providing this Terminal's clock. your timekeeper, your main character, periodt. ⏰
• type — the Usage of the Terminal Entity. i.e. what it's actually for. 🦋
• connector — the Physical Connector of the Terminal Entity. the actual pluggy bit. 🔌
• reference — the Physical Jack number of the Terminal Entity. yes, it's an int, yes it's a jack number, slay. 🎧
• num_transducer — the Number of transducers attached to the Terminal Entity. counting the transducers like it's a group chat member list. 🌈
• is_dataport — a bool that tells you if this Terminal represents a Dataport. true/false, iconic behaviour only. ⭐

ngl the field name num_transducer is singular and i respect that choice, we don't fix what's not ours 💅

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👑 SEE ALSO 👑

the whole friend group, fr fr — straight from the 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)
• 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_channel(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)

sixty-five entries. SIXTY-FIVE. and you're gonna read all of them because they're all part of the story 🫶

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tl;dr — struct sdca_entity_iot holds the clock pointer, the terminal usage type, the physical connector, the jack reference, the num_transducer count, and the is_dataport flag. that's it, that's the struct, she ate and left no crumbs 💀✨

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🌸✨ and that's the page!! sourced from ./include/sound, dated October 2026, in the Kernel API Manual — tysm for reading bestie, go forth and slay your I/O entities 💜🎀🦋