pch_udc_postsvc_epinters(9)

💅 pch_udc_postsvc_epinters(9) — the Kernel API Manual, bestie edition 🎀

Okay so this is a page from the Kernel API Manual, and the star of the show is pch_udc_postsvc_epinters — yes it's a mouthful, yes you're gonna say it in your head seven times, no we're not abbreviating it, that's her name and she's iconic for it ✨

---

🌸 NAME 🌸

pch_udc_postsvc_epinters — This function enables end point interrupts and clears NAK status 💅

Like, that's the whole vibe: turn the endpoint interrupts on, and wipe that NAK status away. Two jobs, zero drama. Periodt.

---

🦋 SYNOPSIS 🦋

void pch_udc_postsvc_epinters (struct pch_udc_dev *dev , int ep_num );

Notice the void bestie — nothing comes back out. She does the thing and she leaves. Main character energy fr fr 🙈

---

💖 ARGUMENTS 💖

• dev — Reference to the device structure. This is the whole device's vibe card, so hand her a real pointer, mwah 🫶
• ep_num — End point number. That's the specific endpoint you're servicing, ngl just tell her which one 💜

---

✨ SEE ALSO ✨

Bestie, buckle up, because this is a whole friend group 😭 The kernel file in question lives at ./drivers/usb/gadget/udc/pch_udc.c, and here's everyone else you might wanna meet:

• The structs, aka the data besties 🎀 — struct pch_udc_data_dma_desc(9), struct pch_udc_stp_dma_desc(9), struct pch_udc_cfg_data(9), struct pch_udc_ep(9), struct pch_vbus_gpio_data(9), struct pch_udc_dev(9), struct pch_udc_request(9)
• The CSR girlies 🌈 — pch_udc_csr_busy(9), pch_udc_write_csr(9), pch_udc_read_csr(9)
• Assorted device-level moments ⭐ — pch_udc_rmt_wakeup(9), pch_udc_get_frame(9), pch_udc_clear_selfpowered(9), pch_udc_set_selfpowered(9), pch_udc_set_disconnect(9), pch_udc_clear_disconnect(9), pch_udc_reconnect(9), pch_udc_vbus_session(9)
• The endpoint squad 💀 — pch_udc_ep_set_stall(9), pch_udc_ep_clear_stall(9), pch_udc_ep_set_trfr_type(9), pch_udc_ep_set_bufsz(9), pch_udc_ep_set_maxpkt(9), pch_udc_ep_set_subptr(9), pch_udc_ep_set_ddptr(9), pch_udc_ep_set_pd(9), pch_udc_ep_set_rrdy(9), pch_udc_ep_clear_rrdy(9)
• DMA + CSR-done crew 🔥 — pch_udc_set_dma(9), pch_udc_clear_dma(9), pch_udc_set_csr_done(9)
• Interrupt enable/disable enablers 🧚 — pch_udc_disable_interrupts(9), pch_udc_enable_interrupts(9), pch_udc_disable_ep_interrupts(9), pch_udc_enable_ep_interrupts(9)
• The read/write register twins 💜 — pch_udc_read_device_interrupts(9), pch_udc_write_device_interrupts(9), pch_udc_read_ep_interrupts(9), pch_udc_write_ep_interrupts(9), pch_udc_read_device_status(9), pch_udc_read_ep_control(9), pch_udc_clear_ep_control(9), pch_udc_read_ep_status(9), pch_udc_clear_ep_status(9)
• NAK + FIFO + enable/disable + stall-waiting 🍓 — pch_udc_ep_set_nak(9), pch_udc_ep_clear_nak(9), pch_udc_ep_fifo_flush(9), pch_udc_ep_enable(9), pch_udc_ep_disable(9), pch_udc_wait_ep_stall(9)
• Init/exit + gadget (pcd) layer 👑 — pch_udc_init(9), pch_udc_exit(9), pch_udc_pcd_get_frame(9), pch_udc_pcd_wakeup(9), pch_udc_pcd_selfpowered(9), pch_udc_pcd_pullup(9), pch_udc_pcd_vbus_session(9), pch_udc_pcd_vbus_draw(9)
• The VBUS GPIO committee 💖 — pch_vbus_gpio_get_value(9), pch_vbus_gpio_work_fall(9), pch_vbus_gpio_work_rise(9), pch_vbus_gpio_irq(9), pch_vbus_gpio_init(9), pch_vbus_gpio_free(9)
• Request + DMA chain helpers 🌸 — complete_req(9), empty_req_queue(9), pch_udc_free_dma_chain(9), pch_udc_create_dma_chain(9), prepare_dma(9), process_zlp(9), pch_udc_start_rxrequest(9)
• The pcd endpoint API 🎀 — pch_udc_pcd_ep_enable(9), pch_udc_pcd_ep_disable(9), pch_udc_alloc_request(9), pch_udc_free_request(9), pch_udc_pcd_queue(9), pch_udc_pcd_dequeue(9), pch_udc_pcd_set_halt(9), pch_udc_pcd_set_wedge(9), pch_udc_pcd_fifo_flush(9)
• Transfer + service routines, lowkey the whole plot 😭 — pch_udc_init_setup_buff(9), pch_udc_start_next_txrequest(9), pch_udc_complete_transfer(9), pch_udc_complete_receiver(9), pch_udc_svc_data_in(9), pch_udc_svc_data_out(9), pch_udc_svc_control_in(9), pch_udc_svc_control_out(9), pch_udc_read_all_epstatus(9), pch_udc_activate_control_ep(9)
• Interrupt service royalty ⭐ — pch_udc_svc_ur_interrupt(9), pch_udc_svc_enum_interrupt(9), pch_udc_svc_intf_interrupt(9), pch_udc_svc_cfg_interrupt(9), pch_udc_dev_isr(9), pch_udc_isr(9)
• Setup + reinit + dma pool starters 🦋 — pch_udc_setup_ep0(9), pch_udc_pcd_reinit(9), pch_udc_pcd_init(9), init_dma_pools(9)

---

iykyk — if you're poking around in ./drivers/usb/gadget/udc/pch_udc.c, this whole list is literally your reading list. go be nosy, bestie 💅

---

And that's the page, babes 🫶 it comes to you from ./drivers/usb/gadget/udc and it's dated October 2026 — so like, save the date, mwah 😘✨