STRUCT MUX_ADTH_DG(9)

✨ struct mux_adth_dg — the kernel API manual, bestie edition ✨

okay so you're here for struct mux_adth_dg(9), which lives in the Kernel API Manual, and honestly? it's giving "small struct, big responsibilities." Let's get into it 💅

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🌸 NAME 🌸

struct mux_adth_dg — this is the Structure of the datagram in the Aggregated Datagram Table Header. yes, that's a lot of capital letters, and yes, it's exactly as important as it sounds 🫶

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🎀 SYNOPSIS 🎀

struct mux_adth_dg {
    __le32 datagram_index;
    __le16 datagram_length;
    u8 service_class;
    u8 reserved;
 };

four fields. that's it. that's the whole vibe check, and it passed ✨

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🦋 Members 🦋

• datagram_index — this is the index (in bytes) to the k-th datagram in the table. and listen, the index shall count from the start of the block including the 16-byte header — don't forget those 16 bytes, bestie, they're part of the count fr fr. also this value shall be non-zero. zero is not the moment 🙈
• datagram_length — the length of the k-th datagram, including the head padding. so yes, the padding counts, it's invited to the party too 💖 and this value shall be non-zero as well — no zero-length friend group allowed 💀
• service_class — the service class identifier for the datagram. it's giving "which class of service is this datagram in," main character energy 👑
• reserved — reserved bytes. Set to zero. that's the whole assignment. do not get creative with it, i'm begging 🧚

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/net/wwan/iosm/iosm_ipc_mux.h
• union mux_cmd_param(9)
• struct mux_qlth_ql(9)
• struct mux_qlth(9)
• struct mux_adb(9)
• struct mux_acb(9)
• struct iosm_mux(9)
• ipc_mux_init(9)
• ipc_mux_deinit(9)
• ipc_mux_check_n_restart_tx(9)
• ipc_mux_get_active_protocol(9)
• ipc_mux_open_session(9)
• ipc_mux_close_session(9)
• ipc_mux_get_max_sessions(9)

like, that's a whole friend group of functions and structs, go say hi to them, they're all iconic in their own way 💜

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quick reminder bestie: datagram_index and datagram_length are both shall be non-zero — the manual said it twice and so did i, because it matters 🔥

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alright, that's the page! sourced straight from ./drivers/net/wwan/iosm, dated October 2026, and titled struct mux_adth_dg(9) — mwah, go read some kernel headers, love u, bye 🍓💅