STRUCT CDNS2_INTERRUPT_REGS(9)

💖 NAME 💖

okay bestie, meet struct cdns2_interrupt_regs(9) — it’s from the Kernel API Manual, and it’s literally the USB interrupt related registers struct. We’re gonna walk through it together, no cap ✨

struct cdns2_interrupt_regs — USB interrupt related registers. Periodt.

🦋 SYNOPSIS 🦋

struct cdns2_interrupt_regs {
    __u8 reserved[396];
    __u8 usbirq;
    __u8 extirq;
    __le16 rxpngirq;
    __le16 reserved1[4];
    __u8 usbien;
    __u8 extien;
    __le16 reserved2[3];
    __u8 usbivect;
};

🍓 Members 🍓

• reserved — reserved. (Yep, that’s the __u8 reserved[396]; chunk up top, bestie.)
• usbirq — USB interrupt request register.
• extirq — external interrupt request register.
• rxpngirq — external interrupt request register. (Not me seeing the same description as extirq — the page says it twice, so I’m saying it twice, periodt 💅)
• reserved1 — reserved.
• usbien — USB interrupt enable register.
• extien — external interrupt enable register.
• reserved2 — reserved.
• usbivect — USB interrupt vector register.

👑 SEE ALSO 👑

Kernel file ./drivers/usb/gadget/udc/cdns2/cdns2-gadget.h — yes, that’s the spot, iykyk 👀

• struct cdns2_ep0_regs(9)
• struct cdns2_epx_base(9)
• struct cdns2_epx_regs(9)
• struct cdns2_usb_regs(9)
• struct cdns2_adma_regs(9)
• struct cdns2_trb(9)
• struct cdns2_ring(9)
• struct cdns2_endpoint(9)
• struct cdns2_request(9)
• struct cdns2_device(9)

mwah 💖 — source/version: ./drivers/usb/gadget/udc/cdns2, October 2026. bye bestie 🫶