bcm63xx_ep0_do_setup(9)

💅 bcm63xx_ep0_do_setup(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ this one's all about bcm63xx_ep0_do_setup — a little function with main character energy and a LOT of friends (seriously, wait till you see SEE ALSO, it's giving family reunion 🎀).

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🌸 NAME 🌸

bcm63xx_ep0_do_setup — parses a new SETUP packet and decides how to handle it. like, it reads the vibe check and picks a plan 💅

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✨ SYNOPSIS ✨

enum bcm63xx_ep0_state bcm63xx_ep0_do_setup (struct bcm63xx_udc *udc );

yep, that's the whole signature, no cap 🫶

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🦋 ARGUMENTS 🦋

• udc — a reference to the device controller. that's the main character here, the whole state machine revolves around it 👑

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💖 DESCRIPTION 💖

okay so real talk, this is what the return values mean 🧚

• EP0_IDLE — probably shouldn't ever happen. like, lowkey never. if you see it, that's a situation 😭
• EP0_REQUEUE — slay, we're ready for the next packet ✨
• anything else — the transaction needs multiple stages of handling. so it's not a one-and-done, it's a whole arc 🌈

ngl the "probably shouldn't ever happen" part is doing a lot of heavy lifting there, so don't come for me if you hit it 💀 it's literally in the manual.

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👑 SEE ALSO 👑

the friend group is huge bestie, buckle up 🎀

• the Kernel file ./drivers/usb/gadget/udc/bcm63xx_udc.c
• 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_idle(9)
• bcm63xx_ep0_one_round(9)
• bcm63xx_ep0_process(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)

like I said. HUGE. 💀

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🍓 bye bestie 🍓

this page lives in ./drivers/usb/gadget/udc, dated October 2026, and it's literally titled bcm63xx_ep0_do_setup(9) — go read the source, it ate 💅✨🫶