libhal_device_get_property_uint64
v_start = libhal_device_get_property_uint64 (ctx, volumes[i], "volume.partition.start", &error);
(long long unsigned int) libhal_device_get_property_uint64 (hal_ctx, udi, key, &error));
dbus_uint64_t value = libhal_device_get_property_uint64 (hal_ctx, udi, key, &error);
dbus_uint64_t libhal_device_get_property_uint64 (LibHalContext *ctx,