usb_endpoint_xfer_isoc(9)

💅 usb_endpoint_xfer_isoc — Kernel API Manual, bestie edition ✨

okay so we're in usb_endpoint_xfer_isoc(9) from the Kernel API Manual and honestly? this one's a lil baby function but she matters 🎀

---

✨ NAME ✨

usb_endpoint_xfer_isoc — check if the endpoint has isochronous transfer type 🌸

literally her whole job. that's it. that's the gig. and she ate 💅

---

🦋 SYNOPSIS 🦋

int usb_endpoint_xfer_isoc (const struct usb_endpoint_descriptor *epd );

(no cap, that space before the closing paren is exactly how it's written, we don't touch it 🙈)

---

🎀 ARGUMENTS 🎀

• epd — the endpoint you want checked, bestie. that's the one. the endpoint to be checked. 👑

---

💖 DESCRIPTION 💖

so here's the vibe check: this function returns true if the endpoint is of type isochronous, and otherwise it returns false. that's the whole plot. no twists, no side quests, just a clean lil boolean read of your endpoint descriptor 🫶

it's giving "yes or no ma'am" energy and we respect it.

---

🌈 SEE ALSO 🌈

the whole friend group, fr fr — go say hi:

• 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_is_bulk_in(9)
• usb_endpoint_is_bulk_out(9)
• usb_endpoint_is_int_in(9)
• usb_endpoint_is_int_out(9)
• usb_endpoint_is_isoc_in(9)
• usb_endpoint_is_isoc_out(9)
• usb_endpoint_maxp(9)
• usb_endpoint_maxp_mult(9)

---

mwah 💋 sign-off time: this iconic lil page lives in ./include/uapi/linux/usb, dated October 2026, and it's page usb_endpoint_xfer_isoc(9) of the Kernel API Manual. go read a descriptor, slay, and stay hydrated 🍓✨