Function realsense_sys::rs2_query_devices

pub unsafe extern "C" fn rs2_query_devices(
    context: *const rs2_context, 
    error: *mut *mut rs2_error
) -> *mut rs2_device_list

create a static snapshot of all connected devices at the time of the call \param context Object representing librealsense session \param[out] error if non-null, receives any error that occurs during this call, otherwise, errors are ignored \return the list of devices, should be released by rs2_delete_device_list