pub unsafe extern "C" fn SoapySDRDevice_getNumDirectAccessBuffers(
device: *mut SoapySDRDevice,
stream: *mut SoapySDRStream
) -> usize
pub unsafe extern "C" fn SoapySDRDevice_getNumDirectAccessBuffers(
device: *mut SoapySDRDevice,
stream: *mut SoapySDRStream
) -> usize