STRUCT IPC_CALL_MSG_SEND_ARGS(9)

💅 NAME 💅

struct ipc_call_msg_send_args — the structure that carries the message argument for the tasklet function, bestie, and yes it's literally just a little bundle of three things 🎀 (this is from the Kernel API Manual, section 9, iykyk ✨)

🌸 SYNOPSIS 🌸

struct ipc_call_msg_send_args {
    union ipc_msg_prep_args *prep_args;
    struct ipc_rsp *response;
    enum ipc_msg_prep_type msg_type;
 };

okay so real talk, that's the whole struct — three members, zero drama, main character energy 👑

🦋 Members 🦋

girl, there are literally three and they're all iconic in their own way:

• prep_args — the arguments for the message preparation function ✨ like, this is where you hand over the goods so the prep step knows what to do 🫶
• response — and here's the tea: this one can be NULL if the result can be ignored 💀 lowkey freeing, ngl
• msg_type — the Message Type 🏷️ that's it, that's the member, she tells you what kind of message you're dealing with 👑

no cap, response being nullable is not a typo — the original says "Can be NULL if result can be ignored", so if you don't care about the answer, feel free to pass nothing 🙈

👑 SEE ALSO 👑

the whole friend group, fr fr 💖 the kernel file lives at ./drivers/net/wwan/iosm/iosm_ipc_protocol.h, and these are all the cousins you should also go read:

• struct ipc_protocol_context_info(9)
• struct ipc_protocol_device_info(9)
• struct ipc_protocol_ap_shm(9)
• struct iosm_protocol(9)
• ipc_protocol_tq_msg_send(9)
• ipc_protocol_msg_send(9)
• ipc_protocol_suspend(9)
• ipc_protocol_s2idle_sleep(9)
• ipc_protocol_resume(9)
• ipc_protocol_pm_dev_sleep_handle(9)
• ipc_protocol_doorbell_trigger(9)
• ipc_protocol_sleep_notification_string(9)
• ipc_protocol_init(9)
• ipc_protocol_deinit(9)

like... that's a whole squad 🌈 obsessed 💜

and that's the page, bestie 💅✨ sourced straight from ./drivers/net/wwan/iosm, dated October 2026, filed under struct ipc_...sg_send_args(9) — slay, go read your kernel headers, mwah 🎀🦋