Function pamoja_lora_radio_open_sx127x 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn pamoja_lora_radio_open_sx127x(
    spi: *const c_char,
    spi_hz: u32,
    gpio_chip: *const c_char,
    reset_line: u32,
    pa_boost: bool,
    tcxo: bool,
    out_radio: *mut *mut PamojaLoraRadio,
) -> PamojaStatus

Opens an SX1276, SX1277, SX1278, or SX1279 module on a Linux board, such as an RFM95W, and resets it into LoRa mode.

Arguments

• spi - the SPI device file, such as /dev/spidev0.0.
• spi_hz - the SPI clock in hertz, or 0 for PAMOJA_LORA_RADIO_DEFAULT_SPI_HZ.
• gpio_chip - the GPIO chip the reset line is on, such as /dev/gpiochip0.
• reset_line - the line the reset pin is on.
• pa_boost - true when the antenna is on the PA_BOOST output, as on the RFM95W, and false for RFO.
• tcxo - true when a TCXO drives the XTA pin instead of a crystal.
• out_radio - receives the radio, or null when opening fails.

Returns

PamojaStatus::Ok with the radio in out_radio; PamojaStatus::Unsupported on any platform but Linux; PamojaStatus::InvalidArgument for a null or non-UTF-8 argument; or PamojaStatus::Io when a device cannot be opened or no chip answers. The last error message says which.

Safety

spi and gpio_chip must be null-terminated strings or null, and out_radio a writable pointer or null.