ipc_pm_trigger(9)

💖 ipc_pm_trigger(9) — the Kernel API Manual glow-up 💖

okay so bestie, gather round, because we're looking at ipc_pm_trigger today — straight out of the Kernel API Manual, section 9 (that's the kernel-API section, iykyk). The whole vibe of this function is "update power manager and wake up the link if needed" — which is exactly what the NAME section says, and honestly? iconic. It's giving responsible friend who makes sure everyone's awake before the group photo. 🫶

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✨ NAME ✨

ipc_pm_trigger — Update power manager and wake up the link if needed 💅

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🌸 SYNOPSIS 🌸

bool ipc_pm_trigger (struct iosm_pm *ipc_pm , enum ipc_pm_unit unit ,
bool active );

like, that's the whole signature, no cap. Returns a bool, takes three things, done. 🎀

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🦋 ARGUMENTS 🦋

• ipc_pm — Pointer to power management component. yeah, it's the power-management bestie itself, you're passing the pointer to it. 💜
• unit — Power management units. this is the "which unit are we talking about" slot, and its type is enum ipc_pm_unit.
• active — Device link state. literally just the state of the device link, bestie. 🔥

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⭐ RETURN ⭐

true if link is unchanged or active, false otherwise. so like — unchanged or active → true, everything else → false. that's it, that's the whole mood. ✨

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🎀 SEE ALSO 🎀

the whole friend group shows up for this one, fr fr. First up, in the kernel file ./drivers/net/wwan/iosm/iosm_ipc_pm.h:

• union ipc_pm_cond(9)
• enum ipc_mem_host_pm_state(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)

all of them, no skipping, that's the full squad 🌈👑

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💀 reminder that the source lives in ./drivers/net/wwan/iosm — go look, it's right there

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and that's the page!! 🍓 mwah 💋 this came from ipc_pm_trigger(9) in the Kernel API Manual, source path ./drivers/net/wwan/iosm, dated October 2026 — so like, future-core of it all ⭐🧚💖