ENUM V4L2_FWNODE_BUS_TYPE(9)

✨ enum v4l2_fwnode_bus_type(9) ✨

okay so bestie, this is from the Kernel API Manual and it's literally the glow-up guide to video bus types — the ones defined by firmware properties 🎀 like, the fwnode tells you what kind of bus it is and this enum is the whole cast of characters. periodt.

💖 NAME 💖

enum v4l2_fwnode_bus_type — Video bus types defined by firmware properties ✨

🌸 SYNOPSIS 🌸

enum v4l2_fwnode_bus_type {
    V4L2_FWNODE_BUS_TYPE_GUESS ,
    V4L2_FWNODE_BUS_TYPE_CSI2_CPHY ,
    V4L2_FWNODE_BUS_TYPE_CSI1 ,
    V4L2_FWNODE_BUS_TYPE_CCP2 ,
    V4L2_FWNODE_BUS_TYPE_CSI2_DPHY ,
    V4L2_FWNODE_BUS_TYPE_PARALLEL ,
    V4L2_FWNODE_BUS_TYPE_BT656 ,
    V4L2_FWNODE_BUS_TYPE_DPI ,
    NR_OF_V4L2_FWNODE_BUS_TYPE

};

🌈 Constants 🌈

• V4L2_FWNODE_BUS_TYPE_GUESS — the default value you get when there's no bus-type fwnode property 🫶 like, it's giving "we'll figure it out" energy.
• V4L2_FWNODE_BUS_TYPE_CSI2_CPHY — MIPI CSI-2 bus, C-PHY physical layer 💅 iconic.
• V4L2_FWNODE_BUS_TYPE_CSI1 — MIPI CSI-1 bus 🌸 the og.
• V4L2_FWNODE_BUS_TYPE_CCP2 — SMIA Compact Camera Port 2 bus ✨ say that five times fast.
• V4L2_FWNODE_BUS_TYPE_CSI2_DPHY — MIPI CSI-2 bus, D-PHY physical layer 🔥 bestie's other fave.
• V4L2_FWNODE_BUS_TYPE_PARALLEL — Camera Parallel Interface bus 🦋.
• V4L2_FWNODE_BUS_TYPE_BT656 — BT.656 video format bus-type 🎀.
• V4L2_FWNODE_BUS_TYPE_DPI — Video Parallel Interface bus ⭐.
• NR_OF_V4L2_FWNODE_BUS_TYPE — Number of bus-types 👑 the final boss of the enum, it just counts them.

🦋 SEE ALSO 🦋

• Kernel file ./include/media/v4l2-fwnode.h — that's the header bestie, struct v4l2_fwnode_endpoint(9) lives there 💜
• V4L2_FWNODE_PROPERTY_UNSET(9)
• enum v4l2_fwnode_orientation(9)
• struct v4l2_fwnode_device_properties(9)
• struct v4l2_fwnode_link(9)
• enum v4l2_connector_type(9)
• struct v4l2_connector_link(9)
• struct v4l2_fwnode_connector_analog(9)
• struct v4l2_fwnode_connector(9)
• v4l2_fwnode_endpoint_parse(9)
• v4l2_fwnode_endpoint_free(9)
• v4l2_fwnode_endpoint_alloc_parse(9)
• v4l2_fwnode_parse_link(9)
• v4l2_fwnode_put_link(9)
• v4l2_fwnode_connector_free(9)
• v4l2_fwnode_connector_parse(9)
• v4l2_fwnode_connector_add_link(9)
• v4l2_fwnode_device_parse(9)

ngl bestie, that's a whole lot of cross-references — read them all, iykyk 😭📚

mwah 💋 that's the whole page! sourced straight outta ./include/media, dated October 2026, and it's the enum v4l2_fwnode_bus_type(9) era fr fr 🫶✨