STRUCT IPC_MEM_MSG_HOST_SLEEP(9)

💖 NAME 💖

struct ipc_mem_msg_host_sleep — message structure for the sleep message. Okay bestie, welcome to the Kernel API Manual, specifically the page for struct ipc_mem_msg_host_sleep(9). This is the whole blueprint for that sleep-message situation, and we are gonna read it together like it’s the group chat. ✨

✨ SYNOPSIS ✨

Here’s the struct in all its structured glory, no cap — every field exactly as it appears:

       struct ipc_mem_msg_host_sleep {
           __le32 reserved1[2];
           u8 target;
           u8 state;
           u8 reserved2;
           u8 type_of_message;
           __le32 reserved3;
           __le32 reserved4;
           __le32 completion_status;
        };

It’s giving very “I have a place for everything and everything is in its place.” 💅

🎀 Members 🎀

• reserved1 — Reserved. That’s literally the note, bestie — we don’t invent lore for reserved fields. 🙈
• target — 0 = host, 1 = device, and host or EP devie is the message target.
• state — 0 = enter sleep, 1 = exit sleep, 2 = enter sleep no protocol.
• reserved2 — Reserved.
• type_of_message — Message type.
• reserved3 — Reserved.
• reserved4 — Reserved.
• completion_status — Message Completion Status.

🌈 SEE ALSO 🌈

Lowkey the “read more” section, and we are keeping every single reference. The page points you at these:

• Kernel file ./drivers/net/wwan/iosm/iosm_ipc_protocol_ops.h
• 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)
• enum ipc_msg_prep_type(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_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)

xoxo, bestie — this page came from the ./drivers/net/wwan/iosm source and is dated October 2026. Go forth and struct responsibly. 💅🫶