STRUCT IWL_UMAC_SCAN_CHANNEL_SURVEY_NOTIF(9)

✨ struct iwl_umac_scan_channel_survey_notif — data for survey ✨

okay bestie, listen up 💖 this page is straight out of the Kernel API Manual (section 9, kernel-API-vibes only) and it's all about one little struct that carries the receipts on how busy a Wi-Fi channel was. it's giving "my toxic trait is measuring everything" and honestly? iconic.

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🌸 SYNOPSIS 🌸

here's the whole struct, exactly as it lives, no edits no notes:

struct iwl_umac_scan_channel_survey_notif {
    __le32 channel;
    __le32 band;
    u8 noise[IWL_MAX_NUM_NOISE_RESULTS];
    u8 reserved[2];
    __le32 active_time;
    __le32 busy_time;
    __le32 tx_time;
    __le32 rx_time;
 };

that's it. that's the whole shape. cute lil survey notif 🎀

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🦋 Members 🦋

okay so each member is a whole personality, let's meet them 🫶

• channel — the channel that got scanned. the main character of this struct, tbh 👑
• band — the band of the channel. where the channel's from, iykyk.
• noise — noise floor measurements in negative dBm, and ngl the invalid value is 0xff 💀 so if you see that, it's not real data, it's a shrug.
• reserved — reserved for future use and alignment. it's just sitting there being a placeholder icon, don't touch, it's saving a seat 🎀
• active_time — time in ms the radio was turned on (on the channel). literally the radio was awake for this long ✨
• busy_time — time in ms the channel was sensed busy, and it's 0 for a clean channel. zero means pristine, no cap 🌸
• tx_time — the time the radio spent transmitting data. sending era 💅
• rx_time — the time the radio spent receiving data. receiving era 🦋

fr fr though: all those time fields are in ms, don't @ me with seconds or the whole vibe check fails 😭

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🌈 SEE ALSO 🌈

bestie here comes the friend group — the whole scan.h crew, plus friends. gather round, this is a long one but every single one of them counts 💜

• Kernel file ./drivers/net/wireless/intel/iwlwifi/fw/api/scan.h
• enum iwl_scan_subcmd_ids(9)
• struct iwl_ssid_ie(9)
• struct iwl_scan_offload_blocklist(9)
• struct iwl_scan_offload_profile(9)
• struct iwl_scan_offload_profile_cfg_data(9)
• struct iwl_scan_offload_profile_cfg_v1(9)
• struct iwl_scan_offload_profile_cfg(9)
• struct iwl_scan_schedule_lmac(9)
• struct iwl_scan_req_tx_cmd(9)
• struct iwl_scan_channel_cfg_lmac(9)
• struct iwl_scan_probe_segment(9)
• struct iwl_scan_probe_req_v1(9)
• struct iwl_scan_probe_req(9)
• struct iwl_scan_channel_opt(9)
• enum iwl_mvm_lmac_scan_flags(9)
• struct iwl_scan_req_lmac(9)
• struct iwl_scan_results_notif(9)
• struct iwl_lmac_scan_complete_notif(9)
• struct iwl_periodic_scan_complete(9)
• struct iwl_scan_dwell(9)
• struct iwl_scan_config_v1(9)
• struct iwl_scan_config_v2(9)
• struct iwl_scan_config(9)
• enum iwl_umac_scan_flags(9)
• enum iwl_umac_scan_general_flags2(9)
• enum iwl_umac_scan_general_flags_v2(9)
• enum iwl_umac_scan_general_params_flags2(9)
• struct iwl_scan_channel_cfg_umac(9)
• struct iwl_scan_umac_schedule(9)
• struct iwl_scan_req_umac_tail_v2(9)
• struct iwl_scan_umac_chan_param(9)
• struct iwl_scan_req_umac(9)
• struct iwl_scan_probe_params_v3(9)
• struct iwl_scan_probe_params_v4(9)
• struct iwl_scan_channel_params_v4(9)
• struct iwl_scan_channel_params_v7(9)
• struct iwl_scan_channel_params_v8(9)
• struct iwl_scan_general_params_v11(9)
• struct iwl_scan_periodic_parms_v1(9)
• struct iwl_scan_req_params_v12(9)
• struct iwl_scan_req_params_v17(9)
• struct iwl_scan_req_params_v18(9)
• struct iwl_scan_req_umac_v12(9)
• struct iwl_scan_req_umac_v17(9)
• struct iwl_scan_req_umac_v18(9)
• struct iwl_umac_scan_abort(9)
• enum iwl_umac_scan_abort_status(9)
• struct iwl_umac_scan_start(9)
• struct iwl_umac_scan_complete(9)
• struct iwl_scan_offload_profile_match_v1(9)
• struct iwl_scan_offload_profiles_query_v1(9)
• struct iwl_scan_offload_profile_match(9)
• struct iwl_scan_offload_match_info(9)
• struct iwl_umac_scan_iter_complete_notif(9)

like, that's the entire group chat and every one of them is invited 🧚💫

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aaaaand that's the page!! 💅 source is ./drivers/net/wireless/intel/i... and the date on this baddie is October 2026, so go forth, read your channel survey data, and slay 🔥👑 periodt 🍓