STRUCT IPC_CHNL_CFG(9)

💅 struct ipc_chnl_cfg(9) 💅

okay so bestie, welcome to the Kernel API Manual — yes we're in kernel land today, and no it's not scary, I promise. This page is all about struct ipc_chnl_cfg, the IPC channel configuration structure. it's giving "blueprint for how one channel behaves" and honestly it ate. 🎀

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✨ NAME ✨

struct ipc_chnl_cfg — the IPC channel configuration structure. that's it, that's the whole vibe check. 🦋

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🌸 SYNOPSIS 🌸

here's the whole thing, literally every member, no skipping, no cap:

struct ipc_chnl_cfg {
    u32 id;
    u32 ul_pipe;
    u32 dl_pipe;
    u32 ul_nr_of_entries;
    u32 dl_nr_of_entries;
    u32 dl_buf_size;
    u32 wwan_port_type;
    u32 accumulation_backoff;
 };

look at her. eight u32 fields, all lined up, main character energy fr fr. 👑

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🧚 Members 🧚

okay now the part where we meet everyone in the group chat:

• id — the interface ID. it's literally her name tag at the party. 🪪
• ul_pipe — the uplink datastream. data going up, we love an upward trajectory. ⬆️
• dl_pipe — the downlink datastream. data coming down, equally iconic. ⬇️
• ul_nr_of_entries — the number of Transfer descriptors on the uplink pipe. yes, that's the count of them, and yes you need it. 🧮
• dl_nr_of_entries — same energy, but for the downlink pipe: the number of Transfer descriptors there. 💫
• dl_buf_size — the downlink buffer size. how much room the downlink gets to breathe. 🫶
• wwan_port_type — the port type for the Wwan subsystem. that's the Wwan subsystem, capital W, we respect her. 🌐
• accumulation_backoff — time, in usec, for data accumulation. usec bestie, microseconds, tiny tiny time. ⏱️

lowkey important: these are all u32 up in the synopsis, so no funny business with other types, mwah. 😭

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🌈 SEE ALSO 🌈

• the kernel file: ./drivers/net/wwan/iosm/iosm_ipc_chnl_cfg.h — go read the actual header, she's right there. 📂
• ipc_chnl_cfg_get(9) — the function that gets you one of these configs, obsessed. 💖

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and that's the page! 🎀 this little cutie came to you from ./drivers/net/wwan/iosm, dated October 2026 — so go forth, configure your channels, and slay. periodt. 💅✨🦋