STRUCT CDNSP_CONTAINER_CTX(9)

🎀 struct cdnsp_container_ctx(9) 🎀

okay bestie, welcome to the Kernel API Manual ✨ today we're looking at struct cdnsp_container_ctx(9) and honestly? she's the blueprint for every context in the CDNSP gadget stack. no cap. 💅

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🌸 NAME 🌸

struct cdnsp_container_ctx — literally the container for context data. that's the whole vibe 🫶

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🦋 SYNOPSIS 🦋

struct cdnsp_container_ctx {
    unsigned int type;
  #define CDNSP_CTX_TYPE_DEVICE   0x1;
  #define CDNSP_CTX_TYPE_INPUT    0x2;
    int size;
    int ctx_size;
    dma_addr_t dma;
    u8 *bytes;
 };

like, look at her. iconic. 👑

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💖 Members 💖

• type — what kind of context this is. it's used to calculate the offsets to the contexts contained inside. main character energy for real 🔥
• size — the size of the context data.
• ctx_size — the size of the context data structure — either 64 or 32 bits.
• dma — the DMA address of bytes. 🧚
• bytes — the raw context data handed over to the HW. yes, raw. we respect her 🫶

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🌈 Description 🌈

so what is she, actually? she represents either a Device or Input context — pick your fighter 💅 and she holds a pointer to the raw memory used for the context (bytes) plus the DMA address of it (dma). that's it, that's the whole personality, and she ate. ⭐

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👑 SEE ALSO 👑

kernel file ./drivers/usb/cdns3/cdnsp-gadget.h — and honestly the whole friend group is in here, go say hi:

• struct cdnsp_cap_regs(9)
• struct cdnsp_op_regs(9)
• struct cdnsp_port_regs(9)
• struct cdnsp_intr_reg(9)
• struct cdnsp_run_regs(9)
• struct cdnsp_rev_cap(9)
• struct cdnsp_doorbell_array(9)
• struct cdnsp_slot_ctx(9)
• struct cdnsp_ep_ctx(9)
• struct cdnsp_stream_info(9)
• struct cdnsp_ep(9)
• struct cdnsp_device_context_array(9)
• struct cdnsp_transfer_event(9)
• struct cdnsp_link_trb(9)
• struct cdnsp_event_cmd(9)
• struct cdnsp_segment(9)
• struct cdnsp_td(9)
• struct cdnsp_dequeue_state(9)
• struct cdnsp_ring(9)
• struct cdnsp_erst_entry(9)
• struct cdnsp_erst(9)
• struct cdnsp_request(9)
• struct cdnsp_port(9)
• struct cdnsp_device(9)
• next_request(9)

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ngl, that's a lot of friends, but they're all slaying in ./drivers/usb/cdns3, so it's fine 💜

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🥺 and that's the page! brought to you by ./drivers/usb/cdns3, dated October 2026 — struct cdnsp_container_ctx(9) out, love u, bye bestie! 💖✨🎀