STRUCT XTPG_DEVICE(9)

✨ NAME ✨

struct xtpg_device — bestie, this is the Xilinx Test Pattern Generator device structure 💅 and yes she's the main character of this page (manual section 9, Kernel API Manual, if you're keeping track 🎀)

🦋 SYNOPSIS 🦋

struct xtpg_device {
    struct xvip_device xvip;
    struct media_pad pads[2];
    unsigned int npads;
    bool has_input;
    struct v4l2_mbus_framefmt formats[2];
    struct v4l2_mbus_framefmt default_format;
    const struct xvip_video_format *vip_format;
    bool bayer;
    struct v4l2_ctrl_handler ctrl_handler;
    struct v4l2_ctrl *hblank;
    struct v4l2_ctrl *vblank;
    struct v4l2_ctrl *pattern;
    bool streaming;
    struct xvtc_device *vtc;
    struct gpio_desc *vtmux_gpio;
 };

Like, that's the whole struct laid out, no cap. Now let's meet the members one by one 🫶

🌸 MEMBERS 🌸

• xvip — the Xilinx Video IP device, aka her ride-or-die ✨
• pads — media pads, plural, she's got options 💅
• npads — how many pads there actually are, and it's 1 or 2 (that's the whole range, bestie)
• has_input — a lil yes/no telling you whether an input is connected to the sink pad 🎀
• formats — the active V4L2 media bus format for each pad (one per pad, obviously 💖)
• default_format — the default V4L2 media bus format, the fallback queen 👑
• vip_format — the format information that corresponds to the active format, iykyk 🌈
• bayer — boolean flag, true when TPG is set to any bayer format 🧚
• ctrl_handler — the control handler, holding it all together fr fr
• hblank — horizontal blanking control ⬅️➡️
• vblank — vertical blanking control ⬆️⬇️
• pattern — the test pattern control, the actual star of the show ⭐
• streaming — is the video stream active? that's the vibe check 💀
• vtc — the video timing controller, timing is everything 🕐
• vtmux_gpio — the video timing mux GPIO, lowkey the plug 🔌

💜 SEE ALSO 💜

Kernel file ./drivers/media/platform/xilinx/xilinx-tpg.c — go read it, it's giving source code excellence 🍓

ok that's the whole page, nothing skipped, nothing invented, we ate and left zero crumbs 💅✨

big kiss, this page lives in ./drivers/media/platform/xilinx and it's dated October 2026 — see you there bestie 🦋💖