STRUCT TEE_IOCL_SUPP_SEND_ARG(9)

💖 NAME 💖

struct tee_iocl_supp_send_arg — okay bestie, this is literally the struct you use to send a response back to a request you already received 💅 it's giving "closing the loop" energy, no cap

✨ SYNOPSIS ✨

struct tee_iocl_supp_send_arg {
    __u32 ret;
    __u32 num_params;
    struct tee_ioctl_param params[];
};

🎀 Members 🎀

• ret — [out] the return value, i.e. what you're handing back 🫶 it's the whole point of the response, fr fr
• num_params — [in] how many struct tee_ioctl_param entries are chilling inside params — yes you have to count them yourself, the kernel is not doing that for you 😭
• params — the array of ioctl parameters 🌸 that's the actual payload, the main character of this whole struct ngl

🔗 SEE ALSO 🔗

Kernel file ./include/uapi/linux/tee.h — go read it, it's iconic 👑

Then the whole friend group, in order, no gatekeeping:

• 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)
• 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)
• struct tee_ioctl_object_invoke_arg(9)

✨ and that's the post ✨ this page came out of ./include/uapi/linux, dated October 2026, and it's titled struct tee_...upp_send_arg(9) in the Kernel API Manual — like the truncation is lowkey tragic but we move 💀🦋 mwah, go send some responses bestie 💖