ENUM IPC_MSG_PREP_TYPE(9)

🌸 enum ipc_msg_prep_type(9) 🌸

okay bestie, welcome to the Kernel API Manual — yes, that's the manual name, we're in kernel-land now, put your seatbelt on 💅 this one's a little enum that tells the iosm driver what kind of message prep we're doing, and honestly it's giving "menu of vibes" energy ✨

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💖 NAME 💖

enum ipc_msg_prep_type — the enum for message prepare actions 🎀

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🦋 SYNOPSIS 🦋

enum ipc_msg_prep_type {
    IPC_MSG_PREP_SLEEP ,
    IPC_MSG_PREP_PIPE_OPEN ,
    IPC_MSG_PREP_PIPE_CLOSE ,
    IPC_MSG_PREP_FEATURE_SET ,
    IPC_MSG_PREP_MAP ,
    IPC_MSG_PREP_UNMAP

};

like, that's the whole roster. six constants, no cap 🔥

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⭐ Constants ⭐

here's the lineup, one by one, main character energy for each 🫶

• IPC_MSG_PREP_SLEEP — the sleep message preparation type 😴 literally the "go to sleep" prep action.
• IPC_MSG_PREP_PIPE_OPEN — the pipe open message preparation type 🚪 opening a pipe, but make it a prep action.
• IPC_MSG_PREP_PIPE_CLOSE — the pipe close message preparation type 🚪💨 the closing counterpart, iconic duo with the one above.
• IPC_MSG_PREP_FEATURE_SET — the feature set message preparation type ✨ setting features, slay.
• IPC_MSG_PREP_MAP — the memory map message preparation type 🗺️ mapping memory, we love to see it.
• IPC_MSG_PREP_UNMAP — the memory unmap message preparation type 🗺️🙈 and the un-mapping counterpart, periodt.

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🔥 SEE ALSO 🔥

kernel file ./drivers/net/wwan/iosm/iosm_ipc_protocol_ops.h — and okay, the friend group here is huge, so buckle up bestie, we're listing every single one fr fr:

enum ipc_mem_td_cs(9), enum ipc_mem_msg_cs(9), struct ipc_msg_prep_args_pipe(9), struct ipc_msg_prep_args_sleep(9), struct ipc_msg_prep_feature_set(9), struct ipc_msg_prep_map(9), struct ipc_msg_prep_unmap(9), union ipc_msg_prep_args(9), struct ipc_rsp(9), enum ipc_mem_msg(9), struct ipc_mem_msg_open_pipe(9), struct ipc_mem_msg_close_pipe(9), struct ipc_mem_msg_abort_pipe(9), struct ipc_mem_msg_host_sleep(9), struct ipc_mem_msg_feature_set(9), struct ipc_mem_msg_common(9), union ipc_mem_msg_entry(9), ipc_protocol_msg_prep(9), ipc_protocol_msg_hp_update(9), ipc_protocol_msg_process(9), ipc_protocol_ul_td_send(9), ipc_protocol_ul_td_process(9), ipc_protocol_dl_td_prepare(9), ipc_protocol_dl_td_process(9), ipc_protocol_get_head_tail_index(9), ipc_protocol_get_ipc_status(9), ipc_protocol_pipe_cleanup(9), ipc_protocol_get_ap_exec_stage(9), ipc_protocol_pm_dev_get_sleep_notification(9)

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ngl, that SEE ALSO section is a whole group chat 💀 but every single one is listed, so we're good 🫶

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and that's the page!! 💜 cute little sign-off time: this one lives over in ./drivers/net/wwan/iosm, and it's dated October 2026. go read the protocol ops header, ily, bye 🎀🦋✨