bcm63xx_ep0_process(9)

✨ bcm63xx_ep0_process(9) — Kernel API Manual ✨

okay bestie, welcome to the absolute icon that is the ep0 worker thread / state machine 💅

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💖 NAME 💖

bcm63xx_ep0_process — ep0 worker thread / state machine. that’s the whole name, and yes she ate 🎀

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🦋 SYNOPSIS 🦋

void bcm63xx_ep0_process (struct work_struct *w );

literally the whole signature, no cap 🫶

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🌸 ARGUMENTS 🌸

• w — Workqueue struct. that’s the argument, bestie ✨

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💜 DESCRIPTION 💜

okay so bcm63xx_ep0_process is triggered any time an event occurs on ep0. she’s used to synchronize ep0 events and ensure that both HW and SW events occur in a well-defined order. no chaotic timeline here, periodt ✨

when the ep0 IUDMA queues are idle, it may synthesize SET_CONFIGURATION / SET_INTERFACE requests that were consumed by the USBD hardware. iykyk 💅

the worker function will continue iterating around the state machine until there is nothing left to do. usually, “nothing left to do” means that we’re waiting for a new event from the hardware. and that’s the vibe check 😭🔥

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🌈 SEE ALSO 🌈

kernel file: ./drivers/usb/gadget/udc/bcm63xx_udc.c

and the whole squad is right here, no one left behind 👑

• struct iudma_ch_cfg(9)
• struct iudma_ch(9)
• struct bcm63xx_ep(9)
• struct bcm63xx_req(9)
• struct bcm63xx_udc(9)
• bcm63xx_ep_dma_select(9)
• bcm63xx_set_stall(9)
• bcm63xx_fifo_setup(9)
• bcm63xx_fifo_reset_ep(9)
• bcm63xx_fifo_reset(9)
• bcm63xx_ep_init(9)
• bcm63xx_ep_setup(9)
• iudma_write(9)
• iudma_read(9)
• iudma_reset_channel(9)
• iudma_init_channel(9)
• iudma_init(9)
• iudma_uninit(9)
• bcm63xx_set_ctrl_irqs(9)
• bcm63xx_select_phy_mode(9)
• bcm63xx_select_pullup(9)
• bcm63xx_uninit_udc_hw(9)
• bcm63xx_init_udc_hw(9)
• bcm63xx_ep_enable(9)
• bcm63xx_ep_disable(9)
• bcm63xx_udc_alloc_request(9)
• bcm63xx_udc_free_request(9)
• bcm63xx_udc_queue(9)
• bcm63xx_udc_dequeue(9)
• bcm63xx_udc_set_halt(9)
• bcm63xx_udc_set_wedge(9)
• bcm63xx_ep0_setup_callback(9)
• bcm63xx_ep0_spoof_set_cfg(9)
• bcm63xx_ep0_spoof_set_iface(9)
• bcm63xx_ep0_map_write(9)
• bcm63xx_ep0_complete(9)
• bcm63xx_ep0_nuke_reply(9)
• bcm63xx_ep0_read_complete(9)
• bcm63xx_ep0_internal_request(9)
• bcm63xx_ep0_do_setup(9)
• bcm63xx_ep0_do_idle(9)
• bcm63xx_ep0_one_round(9)
• bcm63xx_udc_get_frame(9)
• bcm63xx_udc_pullup(9)
• bcm63xx_udc_start(9)
• bcm63xx_udc_stop(9)
• bcm63xx_update_cfg_iface(9)
• bcm63xx_update_link_speed(9)
• bcm63xx_update_wedge(9)
• bcm63xx_udc_ctrl_isr(9)
• bcm63xx_udc_data_isr(9)
• bcm63xx_udc_init_debugfs(9)
• bcm63xx_udc_cleanup_debugfs(9)
• bcm63xx_udc_probe(9)
• bcm63xx_udc_remove(9)

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source/version: ./drivers/usb/gadget/udc · date: October 2026 — mwah, that’s the page, bestie 💋🎀