usb_endpoint_is_int_out(9)

✨ usb_endpoint_is_int_out 💅

okay so bestie, welcome to the usb_endpoint_is_int_out(9) page from the Kernel API Manual — yes it's a kernel function, yes it's iconic, and yes we're gonna get through it together 🫶

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🌸 NAME 🌸

usb_endpoint_is_int_out — the vibe check that tells you if an endpoint is interrupt OUT 💖

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🦋 SYNOPSIS 🦋

int usb_endpoint_is_int_out (const struct usb_endpoint_descriptor *epd
);

like, that's the whole signature, no cap. it takes one pointer and hands you back an int ✨

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🎀 ARGUMENTS 🎀

• epd — the endpoint we're checking. that's it. that's the whole argument, bestie 💅

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💜 DESCRIPTION 💜

so what does it actually do? it returns true if the endpoint has interrupt transfer type AND OUT direction. otherwise? it returns false. periodt 🔥

that's literally it. no secret side quests, no hidden behaviour, just a clean little yes/no about whether your endpoint is giving interrupt-OUT energy 👑

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🌈 SEE ALSO 🌈

the whole friend group, fr fr:

• Kernel file ./include/uapi/linux/usb/ch9.h struct usb_ctrlrequest(9)
• usb_endpoint_num(9)
• usb_endpoint_type(9)
• usb_endpoint_dir_in(9)
• usb_endpoint_dir_out(9)
• usb_endpoint_xfer_bulk(9)
• usb_endpoint_xfer_control(9)
• usb_endpoint_xfer_int(9)
• usb_endpoint_xfer_isoc(9)
• usb_endpoint_is_bulk_in(9)
• usb_endpoint_is_bulk_out(9)
• usb_endpoint_is_int_in(9)
• usb_endpoint_is_isoc_in(9)
• usb_endpoint_is_isoc_out(9)
• usb_endpoint_maxp(9)
• usb_endpoint_maxp_mult(9)

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ngl bestie, if you're only here for the interrupt-OUT check, usb_endpoint_is_int_out(9) is your main character. the rest are supporting cast, but they're all slaying in their own lanes 💀

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and that's the page!! source path is ./include/uapi/linux/usb and it's dated October 2026 — so yeah, mark your calendars, this one's from the future 🧚 mwah, go check those endpoints 💖✨🎀