usb4_port_device_resume(9)

💅 usb4_port_device_resume 💅

okay so this is a page from the Kernel API Manual, and honestly? it's a short one, but it's lowkey important. we're talking about usb4_port_device_resume — the little function that wakes your USB4 port device back up. bestie, it's giving "rise and shine" energy ✨

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✨ NAME ✨

usb4_port_device_resume — resumes the USB4 port device 🫶 like, it literally wakes it up. no cap.

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✨ SYNOPSIS ✨

int usb4_port_device_resume (struct usb4_port *usb4 );

so it returns an int, takes a pointer to a struct usb4_port named usb4, and that's the whole vibe check. simple. iconic. 💅

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✨ ARGUMENTS ✨

• usb4 — the USB4 port device 🦋 this is the one getting the wake-up call, bestie. it's literally the main character of this function.

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✨ DESCRIPTION ✨

used to resume the USB4 port device after sleep state 😴➡️👑

that's it. that's the whole description. it takes your sleepy little port device and goes "girl, wake up, we have things to do" and honestly? we love that for it. no extra lore, no hidden tricks — just a resume. periodt. 🔥

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✨ RETURN ✨

• 0 on success 🎀 slay, everything worked
• negative errno otherwise 😭 so if it's not 0, something went sideways and you get a negative errno to tell you what happened.

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✨ SEE ALSO ✨

• the kernel file ./drivers/thunderbolt/usb4_port.c 📁 (yes, that's the one, iykyk)
• usb4_usb3_port_match(9)
• usb4_port_device_add(9)
• usb4_port_device_remove(9)

go read those too, bestie, they're all part of the same friend group 🫶💜

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ngl this one's a short read, but ey, not every page needs to be a saga. sometimes a function just wakes stuff up and goes home. respect. 🌈

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and that's the whole page!! 💖 this cutie lives in ./drivers/thunderbolt, it's part of the Kernel API Manual, and it was dated October 2026. mwah, go forth and resume your ports responsibly 🧚‍♀️🎀⭐