STRUCT IWL_NAN_CONFIG_CMD(9)

💅 struct iwl_nan_config_cmd(9) — NAN configuration command

okay so bestie, welcome to the Kernel API Manual ✨ — yes this is a real kernel manpage and yes you're gonna understand it, because this struct is literally just the "hey firmware, here's how I want my NAN set up" message. No cap. 🫶

Let me walk you through it, field by field, like we're doing homework together at 1am. 🕯️

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✨ NAME ✨

struct iwl_nan_config_cmd — NAN configuration command. That's it, that's the whole vibe. 👑

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🦋 SYNOPSIS 🦋

Look at her. Iconic. This is the exact shape of the struct, don't touch a single character:

struct iwl_nan_config_cmd {
    __le32 action;
    u8 nmi_addr[6];
    __le16 reserved_for_nmi_addr;
    __le32 discovery_beacon_interval;
    u8 cluster_id[2];
    u8 sta_id;
    u8 hb_channel;
    u8 master_pref;
    u8 dwell_time;
    u8 scan_period;
    u8 flags;
    struct iwl_nan_band_config band_config[IWL_NUM_NAN_BANDS];
    __le32 nan_attr_len;
    __le32 nan_vendor_elems_len;
    u8 beacon_data[];
};

Lowkey a whole personality in a struct. 💖

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💅 Members 💅

• action — the action to perform, see enum iwl_ctxt_action. Like picking which move you're making. 🎬
• nmi_addr — the NAN Management Interface (NMI) address. Her address. Her identity. 🌸
• reserved_for_nmi_addr — reserved. It's reserved, bestie. Leave it alone, it's not for us. 🙈
• discovery_beacon_interval — discovery beacon interval in TUs. That's the timing of the discovery beacons, in TUs. ⏳
• cluster_id — the lower last two bytes of the cluster ID, in case the local device starts a cluster. So if you're the one starting the cluster, you get to name her — well, two bytes of her. 👑
• sta_id — station ID of the NAN station. Careful here: used only in version 1, and in version 2 it's reserved. Version 2 said "not my problem." 💀
• hb_channel — the channel for 5 GHz if the device supports operating on 5 GHz. The valid values are 44 and 149, which correspond to the 5 GHz channel, and 0, which means NAN operation on the 5 GHz band is disabled. So it's 44, 149, or 0 — no in-between, no improvising. 🎯
• master_pref — master preference. 🌟
• dwell_time — dwell time on the discovery channel during scan (milliseconds). And if you set it to 0, the dwell time is determined by the firmware. The firmware takes the wheel. 🚗
• scan_period — scan period in seconds. If set to 0, the scan period is determined by the firmware. Same deal — hand it to firmware and chill. 🫶
• flags — flags for the NAN configuration, see enum iwl_nan_flags. 🚩
• band_config — band configuration for NAN, one for each band. Every band gets her own little config. ✨
• nan_attr_len — length of the NAN attributes to be added to the beacon (bytes). 📏
• nan_vendor_elems_len — length of the NAN vendor elements to be added to the beacon (bytes). 📐
• beacon_data — variable length data that contains the NAN attributes (nan_attr_len) followed by the NAN vendor elements (nan_vendor_elems_len). Variable length!! She can grow!! 💐

heads up bestie: those two length fields are literally telling you how to read beacon_data — attributes first, then vendor elements. Don't mix up the order or it's giving chaos. 😭

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🌈 SEE ALSO 🌈

The whole friend group 🫶 — header file ./drivers/net/wireless/intel/iwlwifi/fw/api/mac-cfg.h plus:

enum iwl_mac_conf_subcmd_ids(9), struct iwl_p2p_noa_attr(9), struct iwl_probe_resp_data_notif(9), struct iwl_missed_vap_notif(9), struct iwl_channel_switch_start_notif_v1(9), struct iwl_channel_switch_start_notif(9), struct iwl_channel_switch_error_notif_v1(9), struct iwl_channel_switch_error_notif(9), struct iwl_cancel_channel_switch_cmd(9), struct iwl_chan_switch_te_cmd(9), struct iwl_mac_low_latency_cmd(9), struct iwl_mac_client_data(9), struct iwl_mac_p2p_dev_data(9), enum iwl_mac_config_filter_flags(9), struct iwl_mac_wifi_gen_support_v2(9), struct iwl_mac_wifi_gen_support(9), struct iwl_mac_config_cmd_v3(9), struct iwl_mac_nan_data(9), struct iwl_mac_config_cmd(9), enum iwl_link_ctx_modify_flags(9), enum iwl_link_ctx_protection_flags(9), enum iwl_link_ctx_flags(9), enum iwl_link_modify_bandwidth(9), enum iwl_npca_flags(9), struct iwl_npca_params(9), struct iwl_link_config_cmd(9), enum iwl_fw_sta_type(9), struct iwl_sta_cfg_cmd_v1(9), struct iwl_sta_cfg_cmd_v2(9), struct iwl_sta_cfg_cmd(9), struct iwl_aux_sta_cmd(9), struct iwl_remove_sta_cmd(9), struct iwl_mvm_sta_disable_tx_cmd(9), enum iwl_mvm_fw_esr_recommendation(9), struct iwl_esr_mode_notif_v1(9), enum iwl_esr_leave_reason(9), struct iwl_esr_mode_notif(9), struct iwl_missed_beacons_notif(9), struct iwl_esr_trans_fail_notif(9), struct iwl_twt_operation_cmd(9), struct iwl_nan_band_config(9), enum iwl_nan_flags(9), struct iwl_nan_schedule_cmd_v1(9), struct iwl_nan_schedule_cmd(9), struct iwl_nan_peer_cmd(9), enum iwl_nan_cluster_notif_flags(9), struct iwl_nan_cluster_notif(9), struct iwl_nan_dw_end_notif(9), struct iwl_nan_ulw_attr_notif(9), enum iwl_nan_sched_update_status(9), struct iwl_nan_sched_update_completed_notif(9).

Like I said. The whole friend group. 🎀

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and that's the page!! source credit goes to ./drivers/net/wireless/intel/i... and she's dated October 2026 — so yeah, future-coded, main character energy, periodt. 🧚💜 go read your structs bestie, you're doing amazing 🫶💖