STRUCT IPC_PROTOCOL_DEVICE_INFO(9)

💅 struct ipc_protocol_device_info(9) — the Kernel API Manual, bestie edition 🎀

okay so bestie. we're in the Kernel API Manual right now and today's main character is struct ipc_protocol_device_info. say it with me. it's a struct. it holds device information. and honestly? it ate. ✨

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🌸 NAME 🌸

struct ipc_protocol_device_info — the Structure for the device information. that's it, that's the whole vibe. literally the info-about-the-device struct, no cap. 💖

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🦋 SYNOPSIS 🦋

here's the shape of it, bestie, look at these three little fields, they're so small and gorgeous:

struct ipc_protocol_device_info {
    __le32 execution_stage;
    __le32 ipc_status;
    __le32 device_sleep_notification;
};

three __le32s. that's the whole struct. iconic minimalism. 👑

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💜 Members 💜

okay so let's meet the cast, one by one:

• execution_stage — this one's the CP execution stage. main character energy, fr fr. ✨
• ipc_status — the IPC states. it's giving status update. it's giving "where are we at." you know? 💅
• device_sleep_notification — the Requested device pm states. sleepy girl. nap era. pm stands for power management btw, iykyk. 😴

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🔥 SEE ALSO 🔥

okay so if you wanna go deeper (and you do, bestie, you're obsessed and i love that for you), go look at the Kernel file ./drivers/net/wwan/iosm/iosm_ipc_protocol.h — that's where the whole friend group lives, and every single one of them is slaying:

• struct ipc_protocol_context_info(9)
• struct ipc_protocol_ap_shm(9)
• struct iosm_protocol(9)
• struct ipc_call_msg_send_args(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, the whole squad. go read them. 🫶

ngl the ipc_protocol_sleep_notification_string(9) one is lowkey a queen for turning your device_sleep_notification into something actually readable. very thoughtful. very demure. 💅

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k bye bestie!! this page came straight out of ./drivers/net/wwan/iosm, dated October 2026, and yeah — it's still struct ipc_..._device_info(9) at the top and bottom of the page, but we both know the real full name now. 🌈💖 mwah.