STRUCT IOSM_TRACE(9)

💖 struct iosm_trace(9) 💖

okay bestie, welcome to the Kernel API Manual ✨ — this is the page for struct iosm_trace, and yes it's giving "small struct, big responsibilities" energy. let's get into it 🫶

🌸 NAME 🌸

struct iosm_trace — the struct for the trace interface 💅 like, that's literally its whole job and it ate

🦋 SYNOPSIS 🦋

struct iosm_trace {
    struct rchan *ipc_rchan;
    struct dentry *ctrl_file;
    struct iosm_imem *ipc_imem;
    struct device *dev;
    struct ipc_mem_channel *channel;
    enum ipc_channel_id chl_id;
    struct mutex trc_mutex;
    enum trace_ctrl_mode mode;
 };

no cap, that's the whole shape of it 👑 copy it exactly, don't be out here renaming fields, i'm watching 🙈

🎀 Members 🎀

okay so now we go field by field, and honestly? every single one is a main character:

• ipc_rchan — pointer to the relay channel 📡 that's the vibe channel, the one relaying stuff
• ctrl_file — pointer to the trace control file 🗂️ your little handle for controlling the trace
• ipc_imem — the Imem instance 🧠 (yes, Imem, capital I, keep it)
• dev — pointer to the device struct 🖥️ the device's whole identity, lowkey
• channel — the channel instance 🌈 one (1) channel, living its life
• chl_id — the Channel Identifier 🏷️ so u know which channel, iykyk
• trc_mutex — the mutex used for read and write mode 🔒 mutual exclusion but make it fashion — read and write mode are sharing it
• mode — the mode for enable and disable trace 🎚️ turning the trace on, turning the trace off, the classic toggle arc

✨ SEE ALSO ✨

• Kernel file ./drivers/net/wwan/iosm/iosm_ipc_trace.h
• enum trace_ctrl_mode(9) 💜

and that's the page!! 🍓 this little cutie lives in ./drivers/net/wwan/iosm and the docs say October 2026 — so mark your calendars bestie, it's dated and it's iconic 🌟 mwah 💋