usb_endpoint_type(9)

💅 usb_endpoint_type(9)

okay so bestie, grab your iced coffee 🍓 — this is a Kernel API Manual page, the kernel API manual one, and it's genuinely one of the shorter ones so you're gonna slay this. it's usb_endpoint_type(9), and it's about figuring out what kind of endpoint you're looking at. literally that's it. iconic. ✨

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🌸 NAME 🌸

usb_endpoint_type — get the endpoint's transfer type 💫

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🎀 SYNOPSIS 🎀

int usb_endpoint_type (const struct usb_endpoint_descriptor *epd );

like yes, that's the whole thing. one function, one pointer, one int coming back at you. no cap. 🔥

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🦋 ARGUMENTS 🦋

• epd — endpoint to be checked. that's your const struct usb_endpoint_descriptor *, and it's the thing we're snooping on. give it a vibe check, we'll tell you what it is. 🫶

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👑 DESCRIPTION 👑

Returns one of USB_ENDPOINT_XFER_{CONTROL, ISOC, BULK, INT} according to epd's transfer type.

that's the entire description bestie. it reads the transfer type off epd and hands you back exactly one of those four values — USB_ENDPOINT_XFER_CONTROL, USB_ENDPOINT_XFER_ISOC, USB_ENDPOINT_XFER_BULK, or USB_ENDPOINT_XFER_INT. one function, four possible answers, zero drama. the way that works is honestly so clean 💜

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🌈 SEE ALSO 🌈

the whole friend group, in order, exactly as it appears — go say hi:

• Kernel file ./include/uapi/linux/usb/ch9.h struct usb_ctrlrequest(9)
• usb_endpoint_num(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_int_out(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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and that's the whole page, bestie — short, sweet, and it ate. 🧚 source/version vibes: ./include/uapi/linux/usb, dated October 2026. mwah 💋💖