STRUCT V4L2_SUBDEV_ROUTE(9)

🎀 NAME 🎀

Okay so this is struct v4l2_subdev_route(9), straight outta the Kernel API Manual, bestie. It describes a route inside a subdev — that’s literally the whole vibe. A tiny route struct living its main character life inside a subdev. 💅✨

✨ SYNOPSIS ✨

Here’s the exact shape, no cap:

       struct v4l2_subdev_route {
           __u32 sink_pad;
           __u32 sink_stream;
           __u32 source_pad;
           __u32 source_stream;
           __u32 flags;
           __u32 reserved[5];
        };

💅 Members 💅

• sink_pad — the sink pad index. That’s it, that’s the field. 🫶
• sink_stream — the sink stream identifier.
• source_pad — the source pad index.
• source_stream — the source stream identifier.
• flags — route flags, and they’re literally V4L2_SUBDEV_ROUTE_FL_*.
• reserved — drivers and applications must zero this array. Not optional, not a suggestion, not a maybe. It’s giving “zero it or else” energy. 😭

🌈 SEE ALSO 🌈

• Kernel file ./include/uapi/linux/v4l2-subdev.h enum v4l2_subdev_format_whence(9)
• struct v4l2_subdev_format(9)
• struct v4l2_subdev_crop(9)
• struct v4l2_subdev_mbus_code_enum(9)
• struct v4l2_subdev_frame_size_enum(9)
• struct v4l2_subdev_frame_interval(9)
• struct v4l2_subdev_frame_interval_enum(9)
• struct v4l2_subdev_selection(9)
• struct v4l2_subdev_capability(9)
• struct v4l2_subdev_routing(9)
• struct v4l2_subdev_client_capability(9)

And that’s the tea 🍓: this page lives at ./include/uapi/linux, it’s dated October 2026, and the footer title is struct v4l2_subdev_route(9). Go forth and zero your reserved array, bestie. 💖✨