ENUM IRIS_INST_STATE(9)

💅 NAME

ok so enum iris_inst_state — and bestie, the manpage literally gives you nothing after the dash 😭 like the description line is just empty. iconic of it honestly. it's a kernel enum that tracks what state a video instance is in, and the constants below are the whole story. keep reading, it slaps. 🦋

✨ SYNOPSIS ✨

enum iris_inst_state {
    IRIS_INST_DEINIT ,
    IRIS_INST_INIT ,
    IRIS_INST_INPUT_STREAMING ,
    IRIS_INST_OUTPUT_STREAMING ,
    IRIS_INST_STREAMING ,
    IRIS_INST_ERROR

};

like, that's the whole enum. six states, zero chill. 🌈

🎀 Constants 🎀

• IRIS_INST_DEINIT — the video instance is closed. doors shut, lights off, nobody's home 💀
• IRIS_INST_INIT — the video instance is opened. we're so back 🫶
• IRIS_INST_INPUT_STREAMING — stream on is completed on the output plane. yes, input state, output plane — that's what it says, don't come for me, I'm just the messenger 🧚
• IRIS_INST_OUTPUT_STREAMING — stream on is completed on the capture plane. same little switcheroo energy ✨
• IRIS_INST_STREAMING — stream on is completed on both output and capture planes. the full slay, both planes, no notes 👑
• IRIS_INST_ERROR — the error state. and then the manpage just... hands you this beautiful little diagram, which I am reproducing exactly because it's giving chaotic art-house cinema and I refuse to touch it 🎬

       IRIS_INST_ERROR
                   error state.  | V ------------- +--------|     INIT
                   |----------+ |         -------------           | |
                   ^   ^                | |           /                    | |
                   /                     | |         v          v            |
                   |   -----------    -----------    | |   |   INPUT
                   OUTPUT  |   | |---| STREAMING     STREAMING |---| |
                   -----------    -----------    | |       ^            ^
                   | |                   /            | |                  /
                   | |           v      v              | |
                   -------------           | |--------|  STREAMING
                   |-----------| |        -------------            | |
                   |                 | |               |                 | |
                   v                 | |          -----------            |
                   +-------->|  DEINIT   |<----------+ |          -----------
                   | |               |                 | |               |
                   | |               v                 | |          ----------
                   | +-------->|   ERROR |<------------+ ----------

ngl that diagram is doing a lot — it's the state machine showing INIT, INPUT STREAMING, OUTPUT STREAMING, STREAMING, DEINIT and ERROR all pointing at each other. vibe check: severely unhinged but we respect it 💅

🔥 SEE ALSO 🔥

• the kernel file ./drivers/media/platform/qcom/iris/iris_state.h, where this enum lives, bestie — go read it, it's right there 🍓
• enum iris_core_state(9) — the core-state sibling 💜
• enum iris_inst_sub_state(9) — because one state enum was apparently not enough, and honestly? obsessed ⭐

and that's the whole page, no cap 💖 this lil' slice of the Kernel API Manual is brought to you by the source path ./drivers/media/platform/qcom/... and dated October 2026 — see you in the next state transition, bestie! 😭💅🌸