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

- u -

u : evtchn_status, xen_domctl, xen_domctl_assign_device, xen_domctl_bind_pt_irq, xen_domctl_schedparam_vcpu, xen_domctl_scheduler_op
uart : emul::bus, modem_backend_uart, modem_backend_uart_config
uart_dev : tty_serial
ub_masked : gpio_cmsdk_ahb
ubx_preamble_sync_chars_received : modem_ubx
uci : bt_tbs_register_param
ud_copy : smp_transport_api_t
ud_free : smp_transport_api_t
udev : uhc_transfer
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 : secure_storage_its_uid_t
unacked_ping : mqtt_client
unbound : evtchn_status
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
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_unicast_to_broadcast_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_stop_complete : bt_cap_initiator_cb
unicast_update_complete : bt_cap_initiator_cb
uninit : shell_transport_api
uninit_cb : shell_ctx
uninit_count : net_buf_pool
unit : bt_gatt_cpf
unit_id : modbus_adu, modbus_server_param
unit_info_rsp : bt_avrcp_cb
unit_type : bt_avrcp_unit_info_rsp
units : bt_aics_register_param
unknown_protocol : net_stats_eth
unlink : fs_file_system_t
unlock : udc_api
unmap_addr : pcie_ep_driver_api
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
unsol_matches : modem_chat_config
unsol_matches_size : modem_chat_config
unsuback : mqtt_evt_param
unused : k_object_data, k_poll_event
unused0 : multiboot_info
unused1 : multiboot_info
unused2 : multiboot_info
up : ppp_fsm
update : bt_mesh_dfu_srv, bt_mesh_model_pub, shell_transport_api, usbd_class_api
update_channels : led_strip_driver_api
update_rgb : led_strip_driver_api
upgrade : http_parser, img_mgmt_upload_req
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 : http_request, websocket_request
url_buffer : http_client_ctx
usage : pm_device_base, 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_suspend_supported : pd_fixed_supply_pdo_source
use_colors : shell_backend_config_flags
use_count : llext
use_dtls : lwm2m_ctx
use_hwinfo : usbd_str_desc_data
use_other_union : segment_descriptor
use_param : mpl_cmd
use_unfiltered_output : comp_mcux_acmp_mode_config
use_vt100 : shell_backend_config_flags
used_msgs : k_msgq, k_msgq_attrs
user : mdm_hl7800_polte_registration_event_data
user_cb : ec_host_cmd, modbus_server_param
user_ctx : shell_fprintf
user_data : adc_sequence_options, bt_bap_stream, bt_gatt_attr, bt_gatt_notify_params, bt_mesh_dfu_metadata, bt_mesh_model::bt_mesh_model_rt_ctx, bt_mesh_msg_ack_ctx, can_mcan_rx_callback, can_mcan_tx_callback, can_sja1000_rx_filter, coap_client_request, coap_core_metadata, coap_reply, coap_resource, counter_alarm_cfg, counter_top_cfg, 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, maxim_ds3231_alarm, modbus_raw_cb, modem_chat, 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_cb, 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_name : mqtt_client
userdata : rtio_cqe, rtio_sqe
username : mdm_hl7800_apn
usp : x86_tss64
utc : gnss_data, sim7080_gnss_data
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_ots_obj_type, bt_sdp_client_result, bt_sdp_discover_params, bt_uuid_128, bt_uuid_16, bt_uuid_32, ext2_cfg, tee_open_session_arg
uuid_128 : bt_ots_obj_type
uuid_16 : bt_ots_obj_type
uuids : bt_mesh_model