STRUCT SOF_IPC4_COPIER(9)

💅 struct_ipc4_copier(9) — the Kernel API Manual, but make it make sense

okay so bestie, welcome to the Kernel API Manual page for struct sof_ipc4_copier — yes that's the actual name, no I can't make it shorter, and yes it's giving "copier config data" realness ✨

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🌸 NAME 🌸

struct sof_ipc4_copier — copier config data. that's it. that's the whole vibe. she's a config blob and she knows it 🎀

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🦋 SYNOPSIS 🦋

here's the whole struct, character for character, bc we do NOT paraphrase code in this house:

struct sof_ipc4_copier {
    struct sof_ipc4_copier_data data;
    u32 *copier_config;
    uint32_t ipc_config_size;
    void *ipc_config_data;
    struct sof_ipc4_available_audio_format available_fmt;
    u32 frame_fmt;
    struct sof_ipc4_msg msg;
    struct sof_ipc4_gtw_attributes *gtw_attr;
    u32 dai_type;
    int dai_index;
    struct sof_ipc4_dma_config_tlv dma_config_tlv[SOF_IPC4_DMA_DEVICE_MAX_COUNT];
};

like, look at her. all those fields. main character energy fr 👑

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💖 Members 💖

okay so every field, one by one, no skipping, because we respect her:

• data — IPC copier data. the actual payload-ish core of the thing 💫
• copier_config — Copier + blob. yes, both. she contains multitudes 🫶
• ipc_config_size — Size of copier_config. so you know how much of the blob is blob 🍓
• ipc_config_data — Copier module config data. the module-level config, separate from the above, don't @ me 💅
• available_fmt — Available audio format. what formats she'll accept. picky but valid ✨
• frame_fmt — frame format. lowkey just the frame format 😌
• msg — message structure for copier. the message-y one 📨
• gtw_attr — Gateway attributes for copier blob. gateway stuff, very "gateway" of her 🌈
• dai_type — DAI type. the type of DAI, iconic deduction 🔥
• dai_index — DAI index. and the index of that DAI. we love a duo 👯
• dma_config_tlv — DMA configuration. it's an array of SOF_IPC4_DMA_DEVICE_MAX_COUNT of those, ngl that's the tea ☕

bestie note: dma_config_tlv is literally declared as struct sof_ipc4_dma_config_tlv dma_config_tlv[SOF_IPC4_DMA_DEVICE_MAX_COUNT] — so it's not a pointer, it's a whole array living right there in the struct. do with that what you will 💀

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🧚 SEE ALSO 🧚

she does NOT exist in a vacuum, she's part of a whole ecosystem, and the kernel file is ./sound/soc/sof/ipc4-topology.h — go read it, it's a journey:

• 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_gtw_attributes(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_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 22 structs. twenty-two. she's connected, she's networked, she's the moment 💅✨

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okay that's the whole page bestie!! 🎀 this came out of ./sound/soc/sof, dated October 2026, and it's filed under struct sof_ipc4_copier(9) in the Kernel API Manual — go forth and configure your copiers, you're gonna slay 💜🦋🌸