udc_enable(9)

✨ udc_enable(9) ✨

Welcome to the Kernel API Manual page for udc_enable(9), bestie. This is the part where we enable a udc device, and we are keeping every single tea leaf intact. 💅

🌸 NAME 🌸

udc_enable — Enables the udc device. Periodt. 🫶

✨ SYNOPSIS ✨

int udc_enable (struct pxa_udc *udc );

🎀 ARGUMENTS 🎀

• udc — udc device. That's the whole argument, icon. 🌟

💅 DESCRIPTION 💅

Okay so udc_enable() is literally here to enable the udc device. It enables clocks, enables udc interrupts, enables control endpoint interrupts, sets usb as UDC client, and setups endpoints (that's the original wording, bestie — I'm not touching it). No cap, that's the whole enable arc. 🔥

🦋 SEE ALSO 🦋

The original points at the Kernel file ./drivers/usb/gadget/udc/pxa27x_udc.c, and then the whole friend group starts with is_match_usb_pxa(9):

• is_match_usb_pxa(9)
• find_pxa_ep(9)
• update_pxa_ep_matches(9)
• pio_irq_enable(9)
• pio_irq_disable(9)
• udc_set_mask_UDCCR(9)
• udc_clear_mask_UDCCR(9)
• ep_write_UDCCSR(9)
• ep_count_bytes_remain(9)
• ep_is_empty(9)
• ep_is_full(9)
• epout_has_pkt(9)
• set_ep0state(9)
• ep0_idle(9)
• inc_ep_stats_reqs(9)
• inc_ep_stats_bytes(9)
• pxa_ep_setup(9)
• pxa_eps_setup(9)
• pxa_ep_alloc_request(9)
• pxa_ep_free_request(9)
• ep_add_request(9)
• ep_del_request(9)
• req_done(9)
• ep_end_out_req(9)
• ep0_end_out_req(9)
• ep_end_in_req(9)
• ep0_end_in_req(9)
• nuke(9)
• read_packet(9)
• write_packet(9)
• read_fifo(9)
• write_fifo(9)
• read_ep0_fifo(9)
• write_ep0_fifo(9)
• pxa_ep_queue(9)
• pxa_ep_dequeue(9)
• pxa_ep_set_halt(9)
• pxa_ep_fifo_status(9)
• pxa_ep_fifo_flush(9)
• pxa_ep_enable(9)
• pxa_ep_disable(9)
• dplus_pullup(9)
• pxa_udc_get_frame(9)
• pxa_udc_wakeup(9)
• should_enable_udc(9)
• should_disable_udc(9)
• pxa_udc_pullup(9)
• pxa_udc_vbus_session(9)
• pxa_udc_vbus_draw(9)
• pxa_udc_phy_event(9)
• udc_disable(9)
• udc_init_data(9)
• pxa27x_udc_start(9)
• stop_activity(9)
• pxa27x_udc_stop(9)
• handle_ep0_ctrl_req(9)
• handle_ep0(9)
• handle_ep(9)
• pxa27x_change_configuration(9)
• pxa27x_change_interface(9)
• irq_udc_suspend(9)
• irq_udc_resume(9)
• irq_udc_reconfig(9)
• irq_udc_reset(9)
• pxa_udc_irq(9)
• pxa_udc_probe(9)
• pxa_udc_remove(9)
• pxa_udc_suspend(9)
• pxa_udc_resume(9)

Cute sign-off: this page lives in ./drivers/usb/gadget/udc, is dated October 2026, and is filed under udc_enable(9). That's the footer tea — bye bestie! 💖✨