xudc_ep0_disable(9)

🎀 xudc_ep0_disable(9) 🎀

okay bestie, welcome to the Kernel API Manual moment for xudc_ep0_disable(9) — it's giving tiny function with big “do not call me from the gadget layer” energy. 💅

✨ NAME ✨

xudc_ep0_disable — Disables the given endpoint. Yes, literally that. 🎀

🌸 SYNOPSIS 🌸

int xudc_ep0_disable (struct usb_ep *ep );

🦋 ARGUMENTS 🦋

• ep — pointer to the usb endpoint structure. That's the whole argument, bestie. 🫶

💖 RETURN 💖

• error always. No cap — that's the return value, always. 😭

🔥 DESCRIPTION 🔥

okay so here's the vibe check: endpoint 0 disable should not be called by gadget layer. That's it. That's the whole note. Do not come for endpoint 0 disable from the gadget layer, periodt. 💅

👑 SEE ALSO 👑

the whole extended universe is here, and we are obsessed with this friend group:

• Kernel file ./drivers/usb/gadget/udc/udc-xilinx.c — and struct xusb_req(9), obviously.
• 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_get_frame(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)

Footer-core, bestie: source/version ./drivers/usb/gadget/udc and date October 2026, all wrapped around xudc_ep0_disable(9). Bye! 💖✨