Not working on RPI5

[marcalj]

Hi, I have a working Python code rendering 14 LEDs on GPIO 18, but I'm not able to make it running with Rust.

fn get_controller() -> rs_ws281x::Result<rs_ws281x::Controller> {
    let controller = rs_ws281x::ControllerBuilder::new()
        // .freq(800_000)
        // .dma(10)
        .channel(
            0, // Channel Index
            rs_ws281x::ChannelBuilder::new()
                .pin(18) // GPIO 18 = PWM_CLK
                .count(14) // Number of LEDs
                .strip_type(rs_ws281x::StripType::Ws2812)
                // .brightness(20) // default: 255
                .build(),
        )
        .build()?;

    Ok(controller)
}

When calling this function I get: HwNotSupported error.

I tried recompiling the crate with a newer version of: https://github.com/jgarff/rpi_ws281x

git clone https://github.com/rpi-ws281x/rpi-ws281x-rust.git
cd rpi-ws281x-rust/
cargo build --target=aarch64-unknown-linux-gnu --release

And setting the new path for the library:

#rs_ws281x = "0.5.1" # To control LEDs
rs_ws281x = { path = "../rpi-ws281x-rust", package = "rs_ws281x" }

But the problem persists.

PD: I'm able to use it correctly on a Raspberry Pi Zero 2W.

Any clues? Thanks.

[marcalj]

I've used the pi5 branch without luck as well. The compiled test binary expects to read /dev/ws281x_pwm which needs to be compiled separately and I was not able to compile it: https://github.com/jgarff/rpi_ws281x/wiki/Raspberry-Pi-5-Support