ENUM IPC_MEM_HOST_PM_STATE(9)

💖 NAME 💖

enum ipc_mem_host_pm_state — bestie, this is the enum for the possible states of the HOST SLEEP finite state machine. That's the whole vibe: it's the state list for that FSM, and it's lowkey iconic. ✨

This page lives in the Kernel API Manual — yes, the manual name is enum ipc_mem_host_pm_state(9), folding that in right here because we're cute like that 💅.

✨ SYNOPSIS ✨

okay so here's the exact shape of the enum, no cap:

enum ipc_mem_host_pm_state {
    IPC_MEM_HOST_PM_ACTIVE ,
    IPC_MEM_HOST_PM_ACTIVE_WAIT ,
    IPC_MEM_HOST_PM_SLEEP_WAIT_IDLE ,
    IPC_MEM_HOST_PM_SLEEP_WAIT_D3 ,
    IPC_MEM_HOST_PM_SLEEP ,
    IPC_MEM_HOST_PM_SLEEP_WAIT_EXIT_SLEEP

};

🎀 Constants 🎀

• IPC_MEM_HOST_PM_ACTIVE — host is active, main-character energy, awake and doing its thing 💅
• IPC_MEM_HOST_PM_ACTIVE_WAIT — intermediate state before going to active; it's giving "almost there, hold on" ✨
• IPC_MEM_HOST_PM_SLEEP_WAIT_IDLE — intermediate state to wait for idle before going into sleep; lowkey the "let it chill first" checkpoint 😴
• IPC_MEM_HOST_PM_SLEEP_WAIT_D3 — intermediate state to wait for D3 before going to sleep; D3 is gatekeeping the nap era 🫶
• IPC_MEM_HOST_PM_SLEEP — after this state the interface is not accessible, host is in suspend to RAM; bestie, this is the full sleep moment 😭
• IPC_MEM_HOST_PM_SLEEP_WAIT_EXIT_SLEEP — intermediate state before exiting sleep; the "waking up, give me a sec" vibe 🌸

🦋 SEE ALSO 🦋

Kernel file ./drivers/net/wwan/iosm/iosm_ipc_pm.h, plus all these iconic cross-references:

• union ipc_pm_cond(9)
• enum ipc_mem_dev_pm_state(9)
• struct iosm_pm(9)
• enum ipc_pm_unit(9)
• ipc_pm_init(9)
• ipc_pm_deinit(9)
• ipc_pm_dev_slp_notification(9)
• ipc_pm_set_s2idle_sleep(9)
• ipc_pm_prepare_host_sleep(9)
• ipc_pm_prepare_host_active(9)
• ipc_pm_wait_for_device_active(9)
• ipc_pm_signal_hpda_doorbell(9)
• ipc_pm_trigger(9)

okay that's the whole page, bestie 💖 cute little sign-off: this one's from the source ./drivers/net/wwan/iosm, dated October 2026, and the manual is enum ipc_mem_host_pm_state(9) — periodt. 🎀✨