usb_offload_check(9)

💅 usb_offload_check(9) — like, the Kernel API Manual page, bestie

okay so welcome to the usb_offload_check(9) glow-up ✨ this is a page straight outta the Kernel API Manual, and it's about one tiny lil function that tells you whether your USB device is, rn, doing offload stuff. it's giving "quick vibe check but for kernel power management" 🫶

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🌸 NAME 🌸

usb_offload_check — check offload activities on a USB device 🦋

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✨ SYNOPSIS ✨

bool usb_offload_check (struct usb_device *udev );

no cap, that's the whole signature 💖

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🎀 ARGUMENTS 🎀

• udev — the USB device to check its offload activity 👀 that's the one you're asking about.

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💜 DESCRIPTION 💜

so what this does is: it checks if there are any offload activity on the USB device right now. like, presently. at this exact moment. ⭐

and bestie, that info is actually useful — it could be used for power management or other forms of resource management. so it's not just a fun fact, it's got main character energy in the PM world 😌

⚠️ okay important part, don't skip: the caller must hold udev's device lock. periodt. 🔒

also, the caller should ensure the device itself and the downstream usb devices are all marked as "offload_pm_locked" — that's what ensures the correctness of the return value. so if your answer looks sus, check that first 🙈

returns true on any offload activity, false otherwise 💀✨

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🧚 SEE ALSO 🧚

• Kernel file ./drivers/usb/core/offload.c
• usb_offload_get(9)
• usb_offload_put(9)
• usb_offload_set_pm_locked(9)

go read those next, iykyk 💅

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🌈 okay bye bestie, this page lives in ./drivers/usb/core, it's dated October 2026, and it's usb_offload_check(9) — go off, you got this 💖🎀🫶