Here is a list of all documented struct and union fields with links to the struct/union documentation for each field:

- u -

• unit : ble_gatts_char_pf_t
• update : ble_gatts_read_authorize_params_t
• update_event_counter : bp_page18_data_t , bp_page32_data_t , bp_page17_data_t
• use_parity : app_uart_comm_params_t
• user_defined1 : antfs_dir_struct_t
• user_defined2 : antfs_dir_struct_t
• user_desc_handle : ble_gatts_char_handles_t
• user_flags : antfs_dir_struct_t
• user_id : ble_bps_meas_s
• user_id_present : ble_bps_meas_s
• uuid : ble_gattc_desc_t , ble_gattc_char_t , ble_uuid_t , ble_gattc_service_t , ble_ans_c_evt_t , ble_hids_char_id_t
• uuid_cnt : ble_advdata_uuid_list_t
• uuid_type : ble_dfu_s
• uuids_complete : ble_advdata_t
• uuids_more_available : ble_advdata_t
• uuids_solicited : ble_advdata_t