STRUCT DFS_PATTERN_DETECTOR(9)

💖 struct dfs_pattern_detector(9) — Kernel API manual 💖

okay so bestie, welcome to the struct dfs_pattern_detector(9) page — it's giving radar-detector main character energy and we're gonna understand it fr fr. 🦋✨

✨ NAME ✨

struct dfs_pattern_detector — DFS pattern detector. She's the one spotting patterns and keeping the vibe checked. 💅

• @exit() — destructor. Cleanup queen, no cap. 🎀
• @set_dfs_domain() — set DFS domain, and it resets detector lines when the domain changes. New domain, fresh start, iconic. 💫
• @add_pulse() — add radar pulse to detector; returns true on detection. That's the whole point, periodt. 🔥

🌸 SYNOPSIS 🌸

okay bestie, here's the whole struct in all her glory — every field, every function pointer, exactly as she is:

       struct dfs_pattern_detector {
           void (*exit)(struct dfs_pattern_detector *dpd);
           bool (*set_dfs_domain)(struct dfs_pattern_detector *dpd, enum
       nl80211_dfs_regions region);
           bool (*add_pulse)(struct dfs_pattern_detector *dpd, struct
       pulse_event *pe, struct radar_detector_specs *rs);
           struct ath_dfs_pool_stats (*get_stats)(struct dfs_pattern_detector
       *dpd);
           enum nl80211_dfs_regions region;
           u8 num_radar_types;
           u64 last_pulse_ts;
           struct ath_common *common;
           const struct radar_detector_specs *radar_spec;
           struct list_head channel_detectors;
        };

👑 Members 👑

the cast of characters, iykyk:

• region — active DFS region, NL80211_DFS_UNSET until set. No assumptions before she's set, bestie. 🙈
• num_radar_types — number of different radar types. Count 'em. 🔢
• last_pulse_ts — time stamp of last valid pulse in usecs. Timekeeping but make it radar. ⏱️
• channel_detectors — list connecting channel_detector elements. Linked-list realness. 🔗

👀 SEE ALSO 👀

go read these too, bestie — they're part of the lore:

• Kernel file ./drivers/net/wireless/ath/dfs_pattern_detector.h
• struct ath_dfs_pool_stats(9)
• struct pulse_event(9)
• struct radar_detector_specs(9)
• dfs_pattern_detector_init(9)

source/vibe check: ./drivers/net/wireless/ath • date stamp: October 2026 • manual energy: struct dfs_pattern_detector(9) — slay, bye bestie! 💖✨🫶