Function mmal_sys::mmal_port_parameter_set_rational

pub unsafe extern "C" fn mmal_port_parameter_set_rational(
    port: *mut MMAL_PORT_T, 
    id: u32, 
    value: MMAL_RATIONAL_T
) -> Type

Helper function to set the value of a rational parameter. @param port port on which to set the parameter @param id parameter id @param value value to set the parameter to

@return MMAL_SUCCESS or error