Function soapysdr_sys::SoapySDRDevice_getGain

pub unsafe extern "C" fn SoapySDRDevice_getGain(
    device: *const SoapySDRDevice,
    direction: c_int,
    channel: usize
) -> f64

Get the overall value of the gain elements in a chain. \param device a pointer to a device instance \param direction the channel direction RX or TX \param channel an available channel on the device \return the value of the gain in dB