xudc_get_frame(9)

💅 xudc_get_frame(9) — the Kernel API Manual glow-up 💅

okay so bestie, welcome to the xudc_get_frame(9) page 🎀 this one lives in the Kernel API Manual and it's honestly short and sweet — a little one-function icon, no cap. let's get into it ✨

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✨ NAME ✨

xudc_get_frame — lowkey just reads the current usb frame number for you 🌀 like it literally goes and gets the frame number, that's the whole gig, main character energy fr.

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🌸 SYNOPSIS 🌸

int xudc_get_frame (struct usb_gadget *gadget );

that's it. one function, one argument, one int coming back at you 💖

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🦋 ARGUMENTS 🦋

• gadget — a pointer to the usb gadget structure 🫶 that's the thing you hand over so it knows which gadget we're talking about. give it the pointer, bestie, that's the whole ask.

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⭐ RETURN ⭐

so when it works, you get the current frame number back 🔥 and on failure you get an error value instead 😭 (yes queen, always vibe-check your return value, iykyk).

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👑 SEE ALSO 👑

okay this is the part where the whole friend group shows up 💀 and they all brought their (9) badges. first up, the kernel file it all lives in:

./drivers/usb/gadget/udc/udc-xilinx.c

and then the full squad, no one left behind 🫶:

• struct xusb_req(9)
• struct xusb_ep(9)
• struct xusb_udc(9)
• xudc_write32(9)
• xudc_read32(9)
• xudc_write32_be(9)
• xudc_read32_be(9)
• xudc_wrstatus(9)
• xudc_epconfig(9)
• xudc_start_dma(9)
• xudc_dma_send(9)
• xudc_dma_receive(9)
• xudc_eptxrx(9)
• xudc_done(9)
• xudc_read_fifo(9)
• xudc_write_fifo(9)
• xudc_nuke(9)
• xudc_ep_set_halt(9)
• __xudc_ep_enable(9)
• xudc_ep_enable(9)
• xudc_ep_disable(9)
• xudc_ep_alloc_request(9)
• xudc_free_request(9)
• __xudc_ep0_queue(9)
• xudc_ep0_queue(9)
• xudc_ep_queue(9)
• xudc_ep_dequeue(9)
• xudc_ep0_enable(9)
• xudc_ep0_disable(9)
• xudc_wakeup(9)
• xudc_pullup(9)
• xudc_eps_init(9)
• xudc_stop_activity(9)
• xudc_start(9)
• xudc_stop(9)
• xudc_clear_stall_all_ep(9)
• xudc_startup_handler(9)
• xudc_ep0_stall(9)
• xudc_setaddress(9)
• xudc_getstatus(9)
• xudc_set_clear_feature(9)
• xudc_handle_setup(9)
• xudc_ep0_out(9)
• xudc_ep0_in(9)
• xudc_ctrl_ep_handler(9)
• xudc_nonctrl_ep_handler(9)
• xudc_irq(9)
• xudc_probe(9)
• xudc_remove(9)

like, that's the entire group chat and every single one of them is iconic 💅

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ngl there's not much else on this page — no options, no environment variables, no exit statuses, no bugs, no author lines. just a tiny function doing its little job and a whole extended family of xudc_* friends in SEE ALSO. periodt. 🧚

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and that's the page, bestie!! 🍓 this gorgeous little thing came from the source/version lovelies at ./drivers/usb/gadget/udc and it's stamped October 2026 🌈 so if you're reading it after that, hey, it's still cute, it still counts 💜 mwah 💋