STRUCT CDNS2_EPX_REGS(9)

💖 struct cdns2_epx_regs(9) — Kernel API Manual 💖

🌸 NAME 🌸

okay so bestie, welcome to the Kernel API Manual, section 9 💅 — this page is about struct cdns2_epx_regs — endpoint 1..15 related registers. that's the assignment, no cap. ✨

🦋 SYNOPSIS 🦋

the whole struct, served fresh with every reserved field exactly where it belongs:

       struct cdns2_epx_regs {
           __le32 reserved[2];
           struct cdns2_epx_base ep[15];
           __u8 reserved2[290];
           __u8 endprst;
           __u8 reserved3[41];
           __le16 isoautoarm;
           __u8 reserved4[10];
           __le16 isodctrl;
           __le16 reserved5;
           __le16 isoautodump;
           __le32 reserved6;
           __le16 rxmaxpack[15];
           __le32 reserved7[65];
           __le32 rxstaddr[15];
           __u8 reserved8[4];
           __le32 txstaddr[15];
           __u8 reserved9[98];
           __le16 txmaxpack[15];
        };

🎀 Members 🎀

the field-by-field tea ☕ — every member gets its moment:

• reserved — reserved. that's the whole note. 💀
• ep — none control endpoints array. yes bestie, that's the phrase. 🦋
• reserved2 — reserved. another icon doing reserved things. ✨
• endprst — endpoint reset register. reset tea 💅
• reserved3 — reserved. we respect the reserve. 🫶
• isoautoarm — ISO auto-arm register. auto-arm era 🔥
• reserved4 — reserved. still reserved, still iconic. 🎀
• isodctrl — ISO control register. control the ISO, bestie. 🌈
• reserved5 — reserved. keeping the vibe. 💜
• isoautodump — ISO auto dump enable register. dump enable moment 💀
• reserved6 — reserved. no notes. ⭐
• rxmaxpack — receive (OUT) Max packet size register. packet size queen 👑
• reserved7 — reserved. reserved? reserved. 🍓
• rxstaddr — receive (OUT) start address endpoint buffer register. address era ✨
• reserved8 — reserved. love that for us. 🧚
• txstaddr — transmit (IN) start address endpoint buffer register. transmit bestie 💅
• reserved9 — reserved. final reserved before the last icon. 🌸
• txmaxpack — transmit (IN) Max packet size register. packet size, but IN this time. 🔥

🔥 SEE ALSO 🔥

do not leave without checking these, bestie — Kernel file ./drivers/usb/gadget/udc/cdns2/cdns2-gadget.h and these absolute icons:

• struct cdns2_ep0_regs(9)
• struct cdns2_epx_base(9)
• struct cdns2_interrupt_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 · date: October 2026 · title: struct cdns2_epx_regs(9) 🫶✨