rem: filename = g_build_filename (G_DIR_SEPARATOR_S, "/dev", name, NULL);
add: filename = g_build_filename ("/dev", name, NULL);
context: linux_get_device_path (const char *name){	char *filename;	filename = g_build_filename (G_DIR_SEPARATOR_S,			"/dev", name, NULL);	if (g_file_test (filename, G_FILE_TEST_EXISTS) != FALSE) {		return filename;	}	g_free (filename);	filename = g_build_filename (G_DIR_SEPARATOR_S,			"/dev/v4l", name, NULL);	if (g_file_test (filename, G_FILE_TEST_EXISTS) != FALSE) {		return filename;	}	g_free (filename);	return filename;}