STRUCT TEE_IOCTL_OBJECT_INVOKE_ARG(9)

💅 struct tee_ioctl_object_invoke_arg(9) 💅

okay so bestie, we're in the Kernel API Manual today and this page is all about struct tee_ioctl_object_invoke_arg — the struct that Invokes an object in a Trusted Application. Like, it literally knocks on the TA's door and is like "hey bestie, do the thing" ✨ no cap.

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🦋 NAME 🦋

struct tee_ioctl_object_invoke_arg — Invokes an object in a Trusted Application 🔥

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✨ SYNOPSIS ✨

Like, here's the whole look. Copy it exactly, do not freestyle this one:

struct tee_ioctl_object_invoke_arg {
    __u64 id;
    __u32 op;
    __u32 ret;
    __u32 num_params;
    __u32 :32;
    struct tee_ioctl_param params[];
 };

bestie there's a lil anonymous __u32 :32; sitting in there looking mysterious 👀 — the page does not say a single word about it, so I'm not gonna invent lore. It's just there. Serving silent main character energy 💀

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🌸 Members 🌸

okay the members, one by one, and I'm keeping the [in] / [out] labels exactly because they matter so much:

• id — [in] Object id 🎀 it's the object's whole identity fr fr
• op — [in] Object operation, specific to the object 🫶 like, the op is per-object, so don't assume it's universal, iykyk
• ret — [out] return value 💫 this one comes back to you, it's giving reverse uno
• num_params — [in]</in> number of parameters following this struct 🍓 count them. literally. no vibes-based counting.
• params — array of ioctl parameters 🌈 the actual parade of params marching along behind

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💜 SEE ALSO 💜

everything else in the tee cinematic universe, all referenced from the Kernel file ./include/uapi/linux/tee.h — yes that's the source, write it down:

• struct tee_ioctl_version_data(9)
• TEE_IOC_VERSION(9)
• struct tee_ioctl_shm_alloc_data(9)
• TEE_IOC_SHM_ALLOC(9)
• struct tee_ioctl_buf_data(9)
• struct tee_ioctl_param(9)
• struct tee_ioctl_open_session_arg(9)
• TEE_IOC_OPEN_SESSION(9)
• struct tee_ioctl_invoke_arg(9)
• TEE_IOC_INVOKE(9)
• struct tee_ioctl_cancel_arg(9)
• TEE_IOC_CANCEL(9)
• struct tee_ioctl_close_session_arg(9)
• TEE_IOC_CLOSE_SESSION(9)
• struct tee_iocl_supp_recv_arg(9)
• TEE_IOC_SUPPL_RECV(9)
• struct tee_iocl_supp_send_arg(9)
• TEE_IOC_SUPPL_SEND(9)
• struct tee_ioctl_shm_register_data(9)
• struct tee_ioctl_shm_register_fd_data(9)
• TEE_IOC_SHM_REGISTER_FD(9)
• TEE_IOC_SHM_REGISTER(9)

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💖 and that's the whole page bestie — every member, every [in]/[out], every SEE ALSO reference, all accounted for. nothing dropped, nothing invented. slay. 👑

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byeeee 🦋 — this lil masterpiece lives in ./include/uapi/linux, dated October 2026, and it's officially signed off as struct tee_i...t_invoke_arg(9). mwah 💅💜