usb_endpoint..._isoc_double(9)

✨ NAME ✨

usb_endpoint_is_hs_isoc_double — bestie, this one tells you whether an endpoint is using USB 2 Isochronous Double IN Bandwidth 💅 like it's literally the vibe check for double-bandwidth isoc endpoints 🔥

(this lives in the Kernel API Manual, section 9, and yes the page title is usb_endpoint..._isoc_double(9) — that ellipsis is doing main character energy all on its own 😭)

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🌸 SYNOPSIS 🌸

bool usb_endpoint_is_hs_isoc_double (struct usb_device *udev , const
       struct usb_host_endpoint *ep );

okay so it returns a bool, takes two things, and it's giving "quick little question, big answer" 🎀

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🦋 ARGUMENTS 🦋

• udev — the USB device 👑 this is the big one, the whole device you're asking about
• ep — the endpoint 💫 the specific endpoint under investigation

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⭐ RETURN ⭐

Returns true if an endpoint ep conforms to USB 2 Isochronous Double IN Bandwidth ECN, and false otherwise 🫶

so like... true = slay, it conforms. false = nope, not this one ✨

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🌈 SEE ALSO 🌈

Kernel file ./drivers/usb/core/usb.c — and honestly the whole friend group showed up for this one, no cap:

• usb_find_common_endpoints(9)
• usb_find_common_endpoints_reverse(9)
• usb_find_endpoint(9)
• usb_check_bulk_endpoints(9)
• usb_check_int_endpoints(9)
• usb_find_alt_setting(9)
• usb_ifnum_to_if(9)
• usb_altnum_to_altsetting(9)
• usb_find_interface(9)
• usb_for_each_dev(9)
• usb_release_dev(9)
• usb_alloc_dev(9)
• usb_get_dev(9)
• usb_put_dev(9)
• usb_get_intf(9)
• usb_put_intf(9)
• usb_intf_get_dma_device(9)
• usb_lock_device_for_reset(9)
• usb_get_current_frame_number(9)
• usb_alloc_coherent(9)
• usb_free_coherent(9)
• usb_alloc_noncoherent(9)
• usb_free_noncoherent(9)
• usb_endpoint_max_periodic_payload(9)

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that's the whole page, bestie, you ate it up 💖 This gem comes to you from ./drivers/usb/core, dated October 2026, and the manual header is usb_endpoint..._isoc_double(9) — go forth and check those endpoints, iykyk 🧚‍♀️💜