Here is a list of all variables with links to the structures/unions they belong to:

- u -

u : evtchn_status, xen_dm_op, xen_domctl, xen_domctl_assign_device, xen_domctl_bind_pt_irq, xen_domctl_schedparam_vcpu, xen_domctl_scheduler_op, xen_sysctl
u128 : bt_obex_uuid, bt_sdp_attr_value_uint, bt_uuid_any
u16 : bt_obex_uuid, bt_sdp_attr_value_uint, bt_uuid_any
u32 : bt_obex_uuid, bt_sdp_attr_value_uint, bt_uuid_any
u64 : bt_sdp_attr_value_uint
u8 : bt_sdp_attr_value_uint
uart : emul::bus, modem_backend_uart, modem_backend_uart_config
ub_masked : gpio_cmsdk_ahb
uc_link : ucontext_t
uc_mcontext : ucontext_t
uc_sigmask : ucontext_t
uc_stack : ucontext_t
uci : bt_tbs_register_param
ud_copy : smp_transport_api_t
ud_free : smp_transport_api_t
ud_init : smp_transport_api_t
udev : uhc_transfer, usbh_class_data
udevs : usbh_context
uds_ctx : usbd_class_data
ugg_feat : bt_gmap_feat
ugt_feat : bt_gmap_feat
uhs_2_support : sdhc_host_caps
uhs_max_dtr : sd_switch_caps
uid : bt_avrcp_add_to_now_playing_cmd, bt_avrcp_folder_item, bt_avrcp_get_item_attrs_cmd, bt_avrcp_media_element_item, bt_avrcp_play_item_cmd, secure_storage_its_uid_t
uid_counter : bt_avrcp_add_to_now_playing_cmd, bt_avrcp_change_path_cmd, bt_avrcp_event_data, bt_avrcp_get_folder_items_rsp, bt_avrcp_get_item_attrs_cmd, bt_avrcp_get_total_number_of_items_rsp, bt_avrcp_play_item_cmd, bt_avrcp_search_rsp, bt_avrcp_set_browsed_player_rsp
uint : bt_sdp_attr_value
ulbw : sim7080_ue_sys_info_lte
unacked_ping : mqtt_client
unbound : evtchn_status, ipc_service_cb
unbound_mode : icmsg_config_t
unchunked_ext_msg_supported : pd_fixed_supply_pdo_source, pd_rdo
unconstrained_power : pd_fixed_supply_pdo_sink, pd_fixed_supply_pdo_source
uncorr_ecc_errors : net_stats_eth_errors
uncorr_err_bank : edac_synopsys_callback_data
uncorr_err_bg : edac_synopsys_callback_data
uncorr_err_col : edac_synopsys_callback_data
uncorr_err_count : edac_synopsys_callback_data
uncorr_err_rank : edac_synopsys_callback_data
uncorr_err_row : edac_synopsys_callback_data
uncorr_err_syndrome : edac_synopsys_callback_data
uncorr_err_syndrome_ecc : edac_synopsys_callback_data
unframed_supported : bt_bap_qos_cfg_pref
unicast : bt_iso_info, net_if_ipv4, net_if_ipv6, net_stats_wifi
unicast_discovery_complete : bt_cap_initiator_cb
unicast_group : bt_cap_handover_unicast_to_broadcast_param, bt_cap_unicast_group_info
unicast_group_param : bt_cap_handover_broadcast_to_unicast_param
unicast_retrans_count : bt_mesh_sar_tx
unicast_retrans_int_inc : bt_mesh_sar_tx
unicast_retrans_int_step : bt_mesh_sar_tx
unicast_retrans_without_prog_count : bt_mesh_sar_tx
unicast_start_complete : bt_cap_initiator_cb
unicast_start_param : bt_cap_handover_broadcast_to_unicast_param
unicast_stop_complete : bt_cap_initiator_cb
unicast_to_broadcast_complete : bt_cap_handover_cb
unicast_to_broadcast_created : bt_cap_handover_cb
unicast_update_complete : bt_cap_initiator_cb
uninit : shell_transport_api
uninit_count : net_buf_pool
unit : bt_gatt_cpf
unit_id : modbus_adu, modbus_server_param
unit_info_req : bt_avrcp_tg_cb
unit_info_rsp : bt_avrcp_ct_cb
unit_type : bt_avrcp_unit_info_rsp
units : bt_aics_register_param
unknown_protocol : net_stats_eth
unlink : fs_file_system_t
unlock : hwspinlock_driver_api, udc_api
unlock_con : ocpp_io_value
unmap_addr : pcie_ep_driver_api
unmap_io_range_from_ioreq_server : xen_dm_op
unmapped_pages : sys_mm_drv_bank
unmount : fs_file_system_t
unmute : bt_aics_cb, bt_vcp_vol_ctlr_cb
unmute_written : bt_micp_mic_ctlr_cb
unprovisioned_beacon : bt_mesh_prov
unprovisioned_beacon_gatt : bt_mesh_prov
unregister_event_cb : display_driver_api
unreply_timeout : net_iptable_rule_params
unset_cycles : bl61x_wo_config
unset_invert : bl61x_wo_config
unsol_matches : modem_cellular_vendor_config, modem_chat_config, modem_ubx, modem_ubx_config
unsol_matches_size : modem_chat_config
unsuback : mqtt_evt_param
unused : k_object_data, k_poll_event
up : fido2_device_info, ppp_fsm
update : bt_mesh_health_cli, bt_mesh_model_pub, crc_driver_api, shell_transport_api, usbd_class_api
update_bits : syscon_driver_api
update_channels : led_strip_driver_api
update_inbox : bt_map_mce_mas_cb, bt_map_mse_mas_cb
update_rgb : led_strip_driver_api
update_set_callback : rtc_driver_api
update_user_info : fido2_storage_api
upgrade : http_parser, img_mgmt_upload_req
uplink_link_quality : crsf_link_stats
uplink_rssi_1 : crsf_link_stats
uplink_rssi_2 : crsf_link_stats
uplink_snr : crsf_link_stats
upload : bt_mesh_dfd_srv, img_mgmt_client
upload_header_size : img_gr_upload
upper_bound : prometheus_histogram_bucket
uri : bt_mesh_dfu_img, bt_mesh_prov
uri_list : bt_tbs_client_cb
uri_schemes_supported : bt_tbs_register_param
url : bt_sdp_attr_value, bt_sdp_attr_value_url, http_request, websocket_request
us : veml60xx_it_data
usage : pm_device_base, shell_cmd_help, usb_ep_desc_bmattr
usb_comm_capable : pd_rdo
usb_comms_capable : pd_fixed_supply_pdo_sink, pd_fixed_supply_pdo_source
usb_device_description : usb_cfg_data
usb_ep_address : uaol_ep_table_entry
usb_suspend_supported : pd_fixed_supply_pdo_source
use_count : llext
use_dtls : lwm2m_ctx
use_hwinfo : usbd_str_desc_data
use_mask : zms_iter_config
use_param : mpl_cmd
use_predicate : zms_iter_config
use_range : zms_iter_config
use_unfiltered_output : comp_mcux_acmp_mode_config
used : rtio_pool, virtq
used_msgs : k_msgq_attrs
user : mdm_hl7800_polte_registration_event_data, netmidi2_session
user_cb : ec_host_cmd, modbus_server_param, prometheus_collector
user_data : adc_sequence_options, bt_bap_stream, bt_ccp_call_control_client_cb, bt_gatt_attr, bt_gatt_notify_params, bt_mesh_dfu_metadata, bt_mesh_model::bt_mesh_model_rt_ctx, bt_mesh_msg_ack_ctx, child_interrupt_callback, clock_monitor_config, coap_client_request, coap_client_tcp_request, coap_core_metadata, coap_packet, coap_reply, coap_resource, counter_alarm_cfg, counter_alarm_cfg_64, counter_top_cfg, counter_top_cfg_64, dma_config, dns_resolve_context::dns_pending_query, ec_host_cmd, http_client_internal_data, http_resource_detail_dynamic, http_resource_detail_websocket, input_callback, mipi_dsi_msg, modbus_raw_cb, modem_chat_config, modem_cmux_config, modem_ubx, modem_ubx_config, mqtt_client, net_buf, net_context, net_icmp_ctx, net_socket_service_event, net_trickle, nxp_flexio_child, openthread_state_changed_callback, prometheus_collector, prometheus_counter, prometheus_gauge, prometheus_histogram, prometheus_metric, prometheus_summary, prometheus_summary_quantile, sys_multi_heap_rec, zbus_channel, ztress_context_data
user_data_len : bt_mesh_dfu_metadata
user_data_size : net_buf, net_buf_pool
user_display_name : fido2_credential
user_id : fido2_credential
user_id_len : fido2_credential
user_name : fido2_credential, mqtt_client
user_prop : mqtt_auth_param, mqtt_client, mqtt_common_ack_properties, mqtt_connack_param, mqtt_disconnect_param, mqtt_publish_param, mqtt_subscription_list
userdata : rtio_cqe, rtio_sqe
userlist : netmidi2_ep
username : mdm_hl7800_apn, net_config_ssh_password_auth
users : netmidi2_userlist
utc : gnss_data, sim7080_gnss_data
utc_standard : ubx_cfg_nav5
utc_time : hl78xx_ctzeu_update
utf8 : mqtt_utf8
utype : usbd_bos_desc_data, usbd_str_desc_data
uuid : bt_gatt_attr, bt_gatt_chrc, bt_gatt_discover_params, bt_gatt_include, bt_gatt_indicate_params, bt_gatt_notify_params, bt_gatt_read_params, bt_gatt_service_val, bt_mesh_cdb_node, bt_mesh_cfg_cli_mod_pub, bt_mesh_model_pub, bt_mesh_msg_ctx, bt_mesh_prov, bt_mesh_rpr_unprov, bt_obex_server, bt_obex_uuid, bt_ots_obj_type, bt_sdp_attr_value_pair, bt_sdp_discover_params, bt_uuid_128, bt_uuid_16, bt_uuid_32, bt_uuid_any, ext2_cfg, tee_open_session_arg
uuid_128 : bt_ots_obj_type
uuid_16 : bt_ots_obj_type
uuids : bt_mesh_model
uv : fido2_device_info