792 	struct uvcg_extension *xu = to_uvcg_extension(item);		\
803 	ret = sprintf(page, "%u\n", xu->desc.aname);			\
821 	struct uvcg_extension *xu = to_uvcg_extension(item);  in uvcg_extension_b_num_controls_store()  local
837 	xu->desc.bNumControls = num;  in uvcg_extension_b_num_controls_store()
855 	struct uvcg_extension *xu = to_uvcg_extension(item);  in uvcg_extension_b_nr_in_pins_store()  local
873 	if (num == xu->desc.bNrInPins) {  in uvcg_extension_b_nr_in_pins_store()
878 	tmp_buf = krealloc_array(xu->desc.baSourceID, num, sizeof(u8),  in uvcg_extension_b_nr_in_pins_store()
885 	xu->desc.baSourceID = tmp_buf;  in uvcg_extension_b_nr_in_pins_store()
886 	xu->desc.bNrInPins = num;  in uvcg_extension_b_nr_in_pins_store()
887 	xu->desc.bLength = UVC_DT_EXTENSION_UNIT_SIZE(xu->desc.bNrInPins,  in uvcg_extension_b_nr_in_pins_store()
888 						      xu->desc.bControlSize);  in uvcg_extension_b_nr_in_pins_store()
908 	struct uvcg_extension *xu = to_uvcg_extension(item);  in uvcg_extension_b_control_size_store()  local
926 	if (num == xu->desc.bControlSize) {  in uvcg_extension_b_control_size_store()
931 	tmp_buf = krealloc_array(xu->desc.bmControls, num, sizeof(u8),  in uvcg_extension_b_control_size_store()
938 	xu->desc.bmControls = tmp_buf;  in uvcg_extension_b_control_size_store()
939 	xu->desc.bControlSize = num;  in uvcg_extension_b_control_size_store()
940 	xu->desc.bLength = UVC_DT_EXTENSION_UNIT_SIZE(xu->desc.bNrInPins,  in uvcg_extension_b_control_size_store()
941 						      xu->desc.bControlSize);  in uvcg_extension_b_control_size_store()
958 	struct uvcg_extension *xu = to_uvcg_extension(item);  in uvcg_extension_guid_extension_code_show()  local
968 	memcpy(page, xu->desc.guidExtensionCode, sizeof(xu->desc.guidExtensionCode));  in uvcg_extension_guid_extension_code_show()
973 	return sizeof(xu->desc.guidExtensionCode);  in uvcg_extension_guid_extension_code_show()
981 	struct uvcg_extension *xu = to_uvcg_extension(item);  in uvcg_extension_guid_extension_code_store()  local
992 	memcpy(xu->desc.guidExtensionCode, page,  in uvcg_extension_guid_extension_code_store()
993 	       min(sizeof(xu->desc.guidExtensionCode), len));  in uvcg_extension_guid_extension_code_store()
998 	ret = sizeof(xu->desc.guidExtensionCode);  in uvcg_extension_guid_extension_code_store()
1010 	struct uvcg_extension *xu = to_uvcg_extension(item);  in uvcg_extension_ba_source_id_show()  local
1022 	for (ret = 0, i = 0; i < xu->desc.bNrInPins; ++i) {  in uvcg_extension_ba_source_id_show()
1023 		ret += sprintf(pg, "%u\n", xu->desc.baSourceID[i]);  in uvcg_extension_ba_source_id_show()
1038 	struct uvcg_extension *xu = to_uvcg_extension(item);  in uvcg_extension_ba_source_id_store()  local
1069 	kfree(xu->desc.baSourceID);  in uvcg_extension_ba_source_id_store()
1070 	xu->desc.baSourceID = source_ids;  in uvcg_extension_ba_source_id_store()
1071 	xu->desc.bNrInPins = n;  in uvcg_extension_ba_source_id_store()
1072 	xu->desc.bLength = UVC_DT_EXTENSION_UNIT_SIZE(xu->desc.bNrInPins,  in uvcg_extension_ba_source_id_store()
1073 						      xu->desc.bControlSize);  in uvcg_extension_ba_source_id_store()
1089 	struct uvcg_extension *xu = to_uvcg_extension(item);  in uvcg_extension_bm_controls_show()  local
1101 	for (ret = 0, i = 0; i < xu->desc.bControlSize; ++i) {  in uvcg_extension_bm_controls_show()
1102 		ret += sprintf(pg, "0x%02x\n", xu->desc.bmControls[i]);  in uvcg_extension_bm_controls_show()
1117 	struct uvcg_extension *xu = to_uvcg_extension(item);  in uvcg_extension_bm_controls_store()  local
1148 	kfree(xu->desc.bmControls);  in uvcg_extension_bm_controls_store()
1149 	xu->desc.bmControls = bm_controls;  in uvcg_extension_bm_controls_store()
1150 	xu->desc.bControlSize = n;  in uvcg_extension_bm_controls_store()
1151 	xu->desc.bLength = UVC_DT_EXTENSION_UNIT_SIZE(xu->desc.bNrInPins,  in uvcg_extension_bm_controls_store()
1152 						      xu->desc.bControlSize);  in uvcg_extension_bm_controls_store()
1179 	struct uvcg_extension *xu = container_of(item, struct uvcg_extension, item);  in uvcg_extension_release()  local
1181 	kfree(xu);  in uvcg_extension_release()
1187 	struct uvcg_extension *xu = to_uvcg_extension(src);  in uvcg_extension_allow_link()  local
1204 	xu->string_descriptor_index = string->usb_string.id;  in uvcg_extension_allow_link()
1216 	struct uvcg_extension *xu = to_uvcg_extension(src);  in uvcg_extension_drop_link()  local
1227 	xu->string_descriptor_index = 0;  in uvcg_extension_drop_link()
1248 	struct uvcg_extension *xu = container_of(item, struct uvcg_extension, item);  in uvcg_extension_drop()  local
1258 	list_del(&xu->list);  in uvcg_extension_drop()
1259 	kfree(xu->desc.baSourceID);  in uvcg_extension_drop()
1260 	kfree(xu->desc.bmControls);  in uvcg_extension_drop()
1268 	struct uvcg_extension *xu;  in uvcg_extension_make()  local
1274 	xu = kzalloc(sizeof(*xu), GFP_KERNEL);  in uvcg_extension_make()
1275 	if (!xu)  in uvcg_extension_make()
1278 	xu->desc.bLength = UVC_DT_EXTENSION_UNIT_SIZE(0, 0);  in uvcg_extension_make()
1279 	xu->desc.bDescriptorType = USB_DT_CS_INTERFACE;  in uvcg_extension_make()
1280 	xu->desc.bDescriptorSubType = UVC_VC_EXTENSION_UNIT;  in uvcg_extension_make()
1281 	xu->desc.bNumControls = 0;  in uvcg_extension_make()
1282 	xu->desc.bNrInPins = 0;  in uvcg_extension_make()
1283 	xu->desc.baSourceID = NULL;  in uvcg_extension_make()
1284 	xu->desc.bControlSize = 0;  in uvcg_extension_make()
1285 	xu->desc.bmControls = NULL;  in uvcg_extension_make()
1289 	xu->desc.bUnitID = ++opts->last_unit_id;  in uvcg_extension_make()
1291 	config_item_init_type_name(&xu->item, name, &uvcg_extension_type);  in uvcg_extension_make()
1292 	list_add_tail(&xu->list, &opts->extension_units);  in uvcg_extension_make()
1296 	return &xu->item;  in uvcg_extension_make()