ENUM SDCA_MESSAGEOFFSET_RANGE(9)

✨ enum sdca_messageoffset_range — NAME ✨

okay bestie so this is a page from the Kernel API Manual, and it's all about enum sdca_messageoffset_range — literally the column definitions for UMP MessageOffset 💅 that's the whole vibe, no cap.

🎀 SYNOPSIS 🎀

like, here's the actual shape of it, copy-paste exact because we do NOT improvise here:

enum sdca_messageoffset_range {
    SDCA_MESSAGEOFFSET_BUFFER_START_ADDRESS ,
    SDCA_MESSAGEOFFSET_BUFFER_LENGTH ,
    SDCA_MESSAGEOFFSET_UMP_MODE ,
    SDCA_MESSAGEOFFSET_NCOLS

};

🌸 Constants 🌸

so these are the members, and ngl the manpage itself gives us nothing on any of them — every single one is marked -- undescribed -- in the source, so I'm not gonna sit here and make stuff up, that's not the move 🙈

• SDCA_MESSAGEOFFSET_BUFFER_START_ADDRESS — -- undescribed -- (yep, that's genuinely all we get, bestie 😭)
• SDCA_MESSAGEOFFSET_BUFFER_LENGTH — -- undescribed -- (same energy, the docs said nothing 💀)
• SDCA_MESSAGEOFFSET_UMP_MODE — -- undescribed -- (iconic silence, honestly)
• SDCA_MESSAGEOFFSET_NCOLS — -- undescribed -- (the count one, still undescribed, still mysterious 🦋)

fr fr: don't go assuming behaviour from these names, the manual explicitly leaves all four as -- undescribed --. if you need the real semantics, hit the header, not me 💖

👑 SEE ALSO 👑

the whole squad, and yes I'm listing every single one because we don't do skipping here. kernel file first: ./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_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_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)

kay that's the whole page, bestie — go read the headers and slay 💜

this lil beauty lives over in ./include/sound, dated October 2026, and it's page enum sdca_m...offset_range(9) of the Kernel API Manual 🎀 mwah, bye 🫶