STRUCT BCM63XX_REQ(9)

💅 struct bcm63xx_req(9) — Kernel API Manual

okay so this is the kernel API manual page for struct bcm63xx_req. yes bestie, it's a struct page, we're in kernel-doc territory now 🫶

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✨ NAME ✨

struct bcm63xx_req — the internal (driver-level) state of a single request. like, one (1) whole request, and everything the driver needs to remember about it 💖

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🌸 SYNOPSIS 🌸

struct bcm63xx_req {
    struct list_head                queue;
    struct usb_request              req;
    unsigned int                    offset;
    unsigned int                    bd_bytes;
    struct iudma_ch                 *iudma;
 };

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🎀 Members 🎀

okay let's meet the cast, main character energy only:

• queue — links back to the EP's request list. it's the little thread that keeps this request tied to its endpoint's fam 🧵
• req — the USB gadget layer's representation of the request. the glow-up version the gadget side actually sees ✨
• offset — the current byte offset into the data buffer, i.e. the next byte to queue. literally "you are here" 📍
• bd_bytes — how many data bytes live in outstanding BD entries. the count of bytes still out there doing their thing 👀
• iudma — the IUDMA channel used for this request. the ride this request is taking 🚗

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💜 SEE ALSO 💜

first up, the kernel file we're living in: ./drivers/usb/gadget/udc/bcm63xx_udc.c 📁

and then... the whole extended universe, no cap. every single one of these, bestie:

• struct iudma_ch_cfg(9)
• struct iudma_ch(9)
• struct bcm63xx_ep(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 I said. the whole extended universe 🌈👑

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ngl this one's short and sweet — five fields, one list, and a see-also section that ate and left absolutely no crumbs 💀

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and that's the page!! coming to you from ./drivers/usb/gadget/udc, dated October 2026 — mwah, go read the actual source bestie, ily 🎀💖🦋