dwc2_hsotg_p..._req_feature(9)
π dwc2_hsotg_p..._req_feature(9) π
okay so this is a page from the Kernel API Manual, bestie, and it's about one very specific little function in the dwc2 gadget world π¦
πΈ NAME πΈ
dwc2_hsotg_process_req_feature β and what it does is literally in the name, no cap: it processes request {SET,CLEAR}_FEATURE π
β¨ SYNOPSIS β¨
int dwc2_hsotg_process_req_feature (struct dwc2_hsotg *hsotg , struct
usb_ctrlrequest *ctrl );
that's the whole signature, keep it exactly like that π«Ά
π«Ά ARGUMENTS π«Ά
two args, both iconic, both required:
hsotgβ the device state, like the whole vibe of the device in one struct β¨ctrlβ the USB control request, aka the actual ask that came in π¨
π SEE ALSO π
this is the part where the page just goes absolutely feral, because the related stuff lives in the kernel file ./drivers/usb/dwc2/gadget.c and honestly the crossover list is long. like, main-character-long. so buckle up π’
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_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_epint(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. eighty-two of them. an entire friend group ππ
lowkey a flex that this lil function has this many neighbors tbh. anyway bestie, that's the whole page β every flag-adjacent thing, every reference, nothing skipped, we ate and left no crumbs π
and that's the wrap bestie!! this came out of ./drivers/usb/dwc2, dated October 2026, and the header still says dwc2_hsotg_p..._req_feature(9) because the truncation is part of the look πβ¨ go be iconic in the kernel π§ββοΈπ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms