Function mynewt::hw::hal::hal_spi_init

pub unsafe extern "C" fn hal_spi_init(
    spi_num: c_int, 
    cfg: *mut c_void, 
    spi_type: u8
) -> c_int

Initialize the SPI, given by spi_num.

• spi_num: The number of the SPI to initialize
• cfg: HW/MCU specific configuration, passed to the underlying implementation, providing extra configuration.
• spi_type: SPI type (master or slave)

Return: int 0 on success, non-zero error code on failure.