STRUCT VDEC_AP_IPI_CMD(9)

💖 NAME 💖

okay so bestie, you're on the struct vdec_ap_ipi_cmd(9) page in the Kernel API Manual, and this struct is literally the generic AP to VPU ipi command format — the whole little message-shape, no cap. It's giving "kernel struct that knows exactly what it is." 💅

🦋 SYNOPSIS 🦋

here's the exact shape, so don't freestyle the fields:

       struct vdec_ap_ipi_cmd {
           uint32_t msg_id;
           union {
             uint32_t vpu_inst_addr;
             uint32_t inst_id;
           };
           u32 codec_type;
           u32 reserved;
        };

🎀 Members 🎀

• msg_id — this one's a vdec_ipi_msgid. That's the message ID type, periodt.
• {unnamed_union} — anonymous. The union has no name, bestie; it's just out here living its anonymous truth. 🫶
  • vpu_inst_addr — VPU decoder instance address. Used if ABI version < 2.
  • inst_id — instance ID. Used if the ABI version >= 2.
• codec_type — codec fourcc. Slay. ✨
• reserved — reserved param. That's the whole description; it is reserved, and that's the tea. 🍵

🔥 SEE ALSO 🔥

okay bestie, go check these out if you want the full lore:

• Kernel file ./drivers/media/platform/mediatek/vcodec/decoder/vdec_ipi_msg.h
• struct vdec_vpu_ipi_ack(9)
• struct vdec_ap_ipi_init(9)
• struct vdec_ap_ipi_dec_start(9)
• struct vdec_vpu_ipi_init_ack(9)
• struct vdec_ap_ipi_get_param(9)
• struct vdec_vpu_ipi_get_param_ack(9)

and that's the page, bestie! 🫶 this cutie's source/version footer points at ./drivers/media/platform/media..., it's dated October 2026, and the title is still struct vdec_ap_ipi_cmd(9) — okay bye, slay! 💖✨