dwc2_hsotg_epint(9)

💖 dwc2_hsotg_epint — Kernel API Manual, but make it cute 💖

okay so bestie, we're in the dwc2 USB gadget driver and this page is all about dwc2_hsotg_epint — the lil' function that handles an in/out endpoint interrupt. literally its whole job. no cap.

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✨ NAME ✨

dwc2_hsotg_epint — handle an in/out endpoint interrupt 🎀

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✨ SYNOPSIS ✨

void dwc2_hsotg_epint (struct dwc2_hsotg *hsotg , unsigned int idx , int
dir_in );

she takes three things and gives you back nothing (void, my beloved), periodt.

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✨ ARGUMENTS ✨

• hsotg — the driver state 🫶 that's the big vibe-holder struct, you know her.
• idx — the index for the endpoint, and it lives in 0..15. so, sixteen possible endpoints. sweet sixteen, honestly.
• dir_in — set this if this is an IN endpoint 🌸 (if it's not set… it's not an IN endpoint, iykyk).

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✨ DESCRIPTION ✨

Process and clear any interrupt pending for an individual endpoint. 💅

that's it. one endpoint at a time, look at what's pending, deal with it, clear it, move on. main character energy: focused, does one thing, slays.

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🦋 SEE ALSO 🦋

first up, the kernel file herself: ./drivers/usb/dwc2/gadget.c — that's home base, and then literally the entire extended friend group shows up:

• using_dma(9)
• dwc2_gadget_incr_frame_num(9)
• dwc2_gadget_dec_frame_num_by_one(9)
• dwc2_hsotg_en_gsint(9)
• dwc2_hsotg_disable_gsint(9)
• dwc2_hsotg_ctrl_epint(9)
• dwc2_hsotg_tx_fifo_count(9)
• dwc2_hsotg_tx_fifo_total_depth(9)
• dwc2_gadget_wkup_alert_handler(9)
• dwc2_hsotg_tx_fifo_average_depth(9)
• dwc2_hsotg_init_fifo(9)
• dwc2_hsotg_ep_alloc_request(9)
• is_ep_periodic(9)
• dwc2_hsotg_unmap_dma(9)
• dwc2_hsotg_write_fifo(9)
• get_ep_limit(9)
• dwc2_hsotg_read_frameno(9)
• dwc2_gadget_get_chain_limit(9)
• dwc2_hsotg_start_req(9)
• dwc2_hsotg_map_dma(9)
• dwc2_gadget_target_frame_elapsed(9)
• dwc2_hsotg_complete_oursetup(9)
• ep_from_windex(9)
• dwc2_hsotg_set_test_mode(9)
• dwc2_hsotg_send_reply(9)
• dwc2_hsotg_process_req_status(9)
• get_ep_head(9)
• dwc2_gadget_start_next_request(9)
• dwc2_hsotg_process_req_feature(9)
• dwc2_hsotg_stall_ep0(9)
• dwc2_hsotg_process_control(9)
• dwc2_hsotg_complete_setup(9)
• dwc2_hsotg_enqueue_setup(9)
• dwc2_hsotg_complete_request(9)
• dwc2_hsotg_rx_data(9)
• dwc2_hsotg_ep0_zlp(9)
• dwc2_hsotg_handle_outdone(9)
• dwc2_hsotg_handle_rx(9)
• dwc2_hsotg_ep0_mps(9)
• dwc2_hsotg_set_ep_maxpacket(9)
• dwc2_hsotg_txfifo_flush(9)
• dwc2_hsotg_trytx(9)
• dwc2_hsotg_complete_in(9)
• dwc2_gadget_read_ep_interrupts(9)
• dwc2_gadget_handle_ep_disabled(9)
• dwc2_gadget_handle_out_token_ep_disabled(9)
• dwc2_gadget_handle_nak(9)
• dwc2_hsotg_irq_enumdone(9)
• kill_all_requests(9)
• dwc2_hsotg_disconnect(9)
• dwc2_hsotg_irq_fifoempty(9)
• dwc2_hsotg_core_init_disconnected(9)
• dwc2_gadget_handle_incomplete_isoc_in(9)
• dwc2_gadget_handle_incomplete_isoc_out(9)
• dwc2_hsotg_irq(9)
• dwc2_hsotg_ep_enable(9)
• dwc2_hsotg_ep_disable(9)
• on_list(9)
• dwc2_hsotg_ep_dequeue(9)
• dwc2_gadget_ep_set_wedge(9)
• dwc2_hsotg_ep_sethalt(9)
• dwc2_hsotg_ep_sethalt_lock(9)
• dwc2_hsotg_init(9)
• dwc2_hsotg_udc_start(9)
• dwc2_hsotg_udc_stop(9)
• dwc2_hsotg_gadget_getframe(9)
• dwc2_hsotg_set_selfpowered(9)
• dwc2_hsotg_pullup(9)
• dwc2_hsotg_vbus_draw(9)
• dwc2_hsotg_initep(9)
• dwc2_hsotg_hw_cfg(9)
• dwc2_hsotg_dump(9)
• dwc2_gadget_init(9)
• dwc2_hsotg_remove(9)
• dwc2_backup_device_registers(9)
• dwc2_restore_device_registers(9)
• dwc2_gadget_init_lpm(9)
• dwc2_gadget_program_ref_clk(9)
• dwc2_gadget_enter_hibernation(9)
• dwc2_gadget_exit_hibernation(9)
• dwc2_gadget_enter_partial_power_down(9)
• dwc2_gadget_enter_clock_gating(9)

like I said. the whole group chat. read them all, bestie, they're all icons 💜

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mwah 💋 this page lives under ./drivers/usb/dwc2, and it's dated October 2026 — so yeah, go off, you funky little gadget driver. hope this helped, love u, bye!! 🎀✨