STRUCT BCM63XX_EP(9)

💅 struct bcm63xx_ep(9) — the Kernel API Manual, bestie edition 🎀

okay so picture this: you're deep in the Kernel API Manual, poking at the USB gadget stack, and you meet struct bcm63xx_ep — literally the internal (driver) state of a single endpoint. one endpoint. that's it. that's the whole vibe. it's giving "main character energy" but make it a struct 💖

✨ SYNOPSIS ✨

struct bcm63xx_ep {
    unsigned int                    ep_num;
    struct iudma_ch                 *iudma;
    struct usb_ep                   ep;
    struct bcm63xx_udc              *udc;
    struct list_head                queue;
    unsigned halted:1;
 };

like, look at her. six fields. no cap, every single one matters. 🫶

🌸 Members 🌸 (the cast of characters)

• ep_num — the USB endpoint number. her little name tag 🏷️
• iudma — a pointer to the IUDMA channel state. yes, pointer. don't lose it 💀
• ep — the USB gadget layer's representation of the EP. the glow-up version of the endpoint 👑
• udc — a reference to the device controller. the parent, the icon, the whole reason she exists 🌈
• queue — a linked list of outstanding requests for this EP. the group chat of pending work fr fr 📋
• halted — a 1 if the EP is stalled; 0 otherwise. binary queen, obsessed ✨

🦋 SEE ALSO 🦋

Kernel file ./drivers/usb/gadget/udc/bcm63xx_udc.c

and the whole extended friend group, no one left out (iykyk) 💜:

• struct iudma_ch_cfg(9), struct iudma_ch(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_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 yeah that's a long list but every single one is linked from here, so you literally cannot get lost. 🧚 read them in order or just vibe-check the ones you need.

and that's the page, bestie!! 🌟 this one lives at ./drivers/usb/gadget/udc, dated October 2026, and it's struct bcm63xx_ep(9) all the way down. slay, go read the source, periodt 💅🔥⭐🍓