STRUCT TI_SCI_INFO(9)

📦 version 7.3.1, in nixpkgs unstable

✨ struct ti_sci_info(9) ✨

okay bestie, welcome to the Kernel API Manual 💅 this is the whole entire page about struct ti_sci_info and honestly? it's giving main character energy for the TI SCI subsystem. let's get into it 🫶

🌸 NAME 🌸

struct ti_sci_info — the structure that represents a TI SCI instance, like, the whole vibe of one SCI thing in one struct 💖

✨ SYNOPSIS ✨

here's the literal layout, no cap, copy it exactly or the compiler will simply end you 😭

struct ti_sci_info {
    struct device *dev;
    const struct ti_sci_desc *desc;
    struct dentry *d;
    void __iomem *debug_region;
    char *debug_buffer;
    size_t debug_region_size;
    struct ti_sci_handle handle;
    struct mbox_client cl;
    struct mbox_chan *chan_tx;
    struct mbox_chan *chan_rx;
    struct ti_sci_xfers_info minfo;
    struct list_head node;
    unsigned long irqs[1 << (( 8) - 1)];
    struct mutex irq_lock;
    u8 host_id;
    u64 fw_caps;
    int users;
 };

(yes, that irqs line is real, she's iconic and she's doing math in her index expression 🔥 and yes there's a lil space before that closing brace, she lives there, leave her alone 🎀)

🦋 Members 🦋

okay so every single member, and what she actually does:

  • dev — device pointer. the classic. the moment. 🫶
  • desc — SoC description for this instance. this is the SoC lore, iykyk 🌈
  • d — debugfs file entry. her little debugfs doorway ✨
  • debug_region — memory region where the debug message are available. yes, that's the wording, and yes it's where the debug messages hang out 💖
  • debug_buffer — buffer allocated to copy debug messages. it copies. it buffers. she serves 💅
  • debug_region_size — the debug region size. how big the debug region is. slay, we love a self-explanatory queen 👑
  • handle — instance of TI SCI handle to send to clients. this is the one you actually hand out, periodt ⭐
  • cl — mailbox client. 📬
  • chan_tx — transmit mailbox channel. the sending one 💌
  • chan_rx — receive mailbox channel. the getting one 📥
  • minfo — message info. 🎀
  • node — list head. she's a list head, that's the whole job 🌸
  • irqs — list of allocated irqs. (an array, bestie, but the docs call it a list, we respect her 🧚)
  • irq_lock — protection for irq hash list. she's the bouncer, nobody touches the irq hash list without her 🔒
  • host_id — host ID. the ID of the host. 💜
  • fw_caps — FW/SoC low power capabilities. the low power flexibility of the firmware/SoC ✨
  • users — number of users of this instance. counting the besties 🫶

🔥 SEE ALSO 🔥

okay this is the big one, a whole group chat of references, all from the kernel file:

./drivers/firmware/ti_sci.c

and she references like everyone she's ever met:

like, she knows everybody. that's range 💀✨

and that's the whole page, bestie 🎀 no notes, ate and left no crumbs. this masterpiece of a man page lives in ./drivers/firmware and was dated October 2026 — mwah, iconic, bye 💖🦋👑

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