ep0_end_out_req(9)

✨ ep0_end_out_req(9) ✨

okay so welcome to the Kernel API Manual, bestie 💖 today's main character is ep0_end_out_req, and we're gonna go through every single detail together. no skipped lore, no cap.

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🌸 NAME 🌸

ep0_end_out_req — ends control endpoint OUT request (ends data stage) ✨

✨ SYNOPSIS ✨

the signature, exactly as it appears, because we do not play with code around here 💅

void ep0_end_out_req (struct pxa_ep *ep , struct pxa27x_request *req ,
       unsigned long *pflags );

🎀 ARGUMENTS 🎀

• ep — physical endpoint 👑
• req — pxa request 🫶
• pflags — flags of previous spinlock_irq_save or NULL if no lock held ⚠️

🦋 CONTEXT 🦋

context check, bestie: ep->lock held or released (see req_done) 💅

💅 DESCRIPTION 💅

this function ends control endpoint OUT request (completes usb request), and puts control endpoint into idle state. that's the whole assignment, and it ate 🔥

👑 SEE ALSO 👑

Kernel file reference: ./drivers/usb/gadget/udc/pxa27x_udc.c — and here's the full squad, no cap:

• 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), 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), udc_enable(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)

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🫶 that's the whole page, bestie! source/version tag: ./drivers/usb/gadget/udc; date: October 2026; page: ep0_end_out_req(9). slay and stay curious 💖