is_match_usb_pxa(9)

💅 is_match_usb_pxa — like, the whole page

okay so bestie, welcome to Kernel API Manual, section 9. this one's a tiny little function in the USB gadget world and honestly it's giving bouncer at the club checking IDs. let's get into it 🎀

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✨ NAME ✨

is_match_usb_pxa — the vibe check that tells you if a usb_ep and a pxa_ep actually match 🫶

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🌸 SYNOPSIS 🌸

int is_match_usb_pxa (struct udc_usb_ep *udc_usb_ep , struct pxa_ep *ep
, int config , int interface , int altsetting );

like literally that's the whole thing. five args, one int back. no cap. ✨

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🦋 ARGUMENTS 🦋

• udc_usb_ep — the usb endpoint, the one bringing the usb energy 💖
• ep — the pxa endpoint, the local bestie
• config — the configuration that pxa_ep is required to have
• interface — the interface that pxa_ep is required to have
• altsetting — the altsetting that pxa_ep is required to have

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👑 DESCRIPTION 👑

it hands back 1 when all the criteria match between the pxa endpoint and the usb endpoint — like a full vibe check pass, everyone's matching, slay 💅 — and 0 otherwise. that's it. that's the function. periodt.

no cap: it's a pure match-check. 1 = yes bestie, 0 = not today.

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🎀 SEE ALSO 🎀

the lore lives in the kernel file ./drivers/usb/gadget/udc/pxa27x_udc.c — and the whole friend group is tagged below, iykyk:

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), 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 page, bestie 🧚💜 this lil' gem comes from ./drivers/usb/gadget/udc, dated October 2026, and it's filed under is_match_usb_pxa(9) — go forth and match some endpoints, main character energy only ⭐🌈