STRUCT SOF_IPC4_GTW_ATTRIBUTES(9)

🎀 struct sof_ipc4_gtw_attributes(9) 🎀

okay bestie, welcome to the Kernel API Manual 💖 you've landed on the page for struct sof_ipc4_gtw_attributes (yeah she's a mouthful, the header lowkey abbreviates her as struct sof_i...w_attributes(9) and honestly? fair). it's giving gateway energy. let's get into it ✨

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✨ NAME ✨

struct sof_ipc4_gtw_attributes — Gateway attributes 🫶

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🦋 SYNOPSIS 🦋

here's the whole struct, bestie, and yes you can see the entire fit — it's literally three bitfields and a dream:

struct sof_ipc4_gtw_attributes {
    uint32_t lp_buffer_alloc : 1;
    uint32_t alloc_from_reg_file : 1;
    uint32_t rsvd : 30;
 };

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💅 Members 💅

• lp_buffer_alloc — the gateway data said "put me in low power memory pls" ✨ that's this one bit right here. one whole bit of yes low power memory please.
• alloc_from_reg_file — and this bit is the gateway data requesting to live in register file memory 🎀 register file girlies rise.
• rsvd — reserved for future use 🦋 aka the 30 bits we're saving for later, no cap. do not touch, she's not ready yet.

ok important vibe check: these are bitfields, so : 1 and : 30 are not decoration — they're the actual width of each field. 1 + 1 + 30 = 32, the math is mathing, periodt 💀

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🌈 SEE ALSO 🌈

if you're obsessed with this one (and why wouldn't you be), the whole friend group lives in the kernel file ./sound/soc/sof/ipc4-topology.h — go say hi to:

• struct sof_ipc4_pipeline(9)
• struct ipc4_pipeline_set_state_data(9)
• struct sof_ipc4_pin_format(9)
• struct sof_ipc4_available_audio_format(9)
• struct sof_copier_gateway_cfg(9)
• struct sof_ipc4_copier_data(9)
• struct sof_ipc4_dma_device_stream_ch_map(9)
• struct sof_ipc4_dma_stream_ch_map(9)
• struct sof_ipc4_dma_config(9)
• struct sof_ipc4_dma_config_tlv(9)
• struct sof_ipc4_copier(9)
• struct sof_ipc4_ctrl_value_chan(9)
• struct sof_ipc4_control_data(9)
• struct sof_ipc4_control_msg_payload(9)
• struct sof_ipc4_gain_params(9)
• struct sof_ipc4_gain_data(9)
• struct sof_ipc4_gain(9)
• struct sof_ipc4_mixer(9)
• struct sof_ipc4_src(9)
• struct sof_ipc4_asrc(9)
• struct sof_ipc4_base_module_cfg_ext(9)
• struct sof_ipc4_process(9)

like, that's a whole squad 😭 and they all pull up together under ./sound/soc/sof — go read them, they ate 🔥

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and that's the page, bestie! 🌸 sign-off time: this one comes from ./sound/soc/sof, dated October 2026 — so yeah, she's got a little timestamp moment 👑 hope the gateway vibes made sense, mwah 💜