Function realsense_sys::rs2_get_device_count

pub unsafe extern "C" fn rs2_get_device_count(
    info_list: *const rs2_device_list, 
    error: *mut *mut rs2_error
) -> c_int

Determines number of devices in a list. \param[in] info_list The list of connected devices captured using rs2_query_devices \param[out] error If non-null, receives any error that occurs during this call, otherwise, errors are ignored \return Device count