ep_del_request(9)

💅 ep_del_request(9) 💅

okay so bestie, welcome to the Kernel API Manual entry for ep_del_request — yes the title is literally the same as the function name, that's just how manpages roll, we love a consistent queen 👑

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🌸 NAME

ep_del_request — removes a request from the endpoint's queue ✨

🎀 SYNOPSIS

void ep_del_request (struct pxa_ep *ep , struct pxa27x_request *req );

like, that's the whole signature, no cap 💫

🫶 ARGUMENTS

• ep — a usb endpoint 🦋
• req — a usb request 🎀

🔒 CONTEXT

• ep->lock held

fr fr, the lock is already in your hand when you call this. don't come for me, that's just the vibe the kernel requires 😭

💖 DESCRIPTION

So what does it actually do? It unqueues the request out of the endpoint's queue. That's the main character move 💅

And then — this is the part you gotta remember — if there are no more requests left on the endpoint, and if it's not the control endpoint, then interrupts get disabled on the endpoint. Big energy, tiny footnote, but it matters 👑

🌈 SEE ALSO

the whole squad, gather round 🫶 — these are all in the Kernel file ./drivers/usb/gadget/udc/pxa27x_udc.c:

• 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), 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), 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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and that's the whole page, bestie, you ate that 🍓 this one lives under ./drivers/usb/gadget/udc, dated October 2026 — go forth and unqueue responsibly 💜🧚