ath5k_hw_update_nfcal_hist(9)

🦋 ath5k_hw_update_nfcal_hist — the glam little history-buffer updater 💅

okay so before we even start: this page lives in the Kernel API Manual, section 9, and it's all about one tiny function that keeps your noise-floor receipts. let's get into it bestie ✨

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🌸 NAME 🌸

ath5k_hw_update_nfcal_hist — Update NF calibration history buffer

like, it literally just pushes the newest noise-floor reading into the history buffer. that's the whole gig. no cap. 🎀

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⭐ SYNOPSIS ⭐

void ath5k_hw_update_nfcal_hist (struct ath5k_hw *ah , s16 noise_floor
);

returns void, so don't go looking for a return value, there isn't one, she just does the thing and dips 🫶

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💖 ARGUMENTS 💖

• ah — The struct ath5k_hw. it's the driver's whole hardware vibe in one struct, and yeah she needs it.
• noise_floor — The NF we got from hw. type s16, and it's the actual noise floor number the hardware handed over. the raw tea, straight from the silicon 🍓

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🔥 SEE ALSO 🔥

okay this list is long, and honestly? iconic. every single one of these is part of the extended ath5k family so let's give them all their moment 👑

• Kernel file ./drivers/net/wireless/ath/ath5k/phy.c — PHY related functions(9)
• ath5k_hw_radio_revision(9)
• ath5k_channel_ok(9)
• ath5k_hw_chan_has_spur_noise(9)
• ath5k_hw_rfb_op(9)
• ath5k_hw_write_ofdm_timings(9)
• ath5k_hw_phy_disable(9)
• ath5k_hw_wait_for_synth(9)
• RF Gain optimization(9)
• ath5k_hw_rfgain_opt_init(9)
• ath5k_hw_request_rfgain_probe(9)
• ath5k_hw_rf_gainf_corr(9)
• ath5k_hw_rf_check_gainf_readback(9)
• ath5k_hw_rf_gainf_adjust(9)
• ath5k_hw_gainf_calibrate(9)
• ath5k_hw_rfgain_init(9)
• ath5k_hw_rfregs_init(9)
• ath5k_hw_rf5110_chan2athchan(9)
• ath5k_hw_rf5110_channel(9)
• ath5k_hw_rf5111_chan2athchan(9)
• ath5k_hw_rf5111_channel(9)
• ath5k_hw_rf5112_channel(9)
• ath5k_hw_rf2425_channel(9)
• ath5k_hw_channel(9)
• PHY Calibration routines(9)
• ath5k_hw_read_measured_noise_floor(9)
• ath5k_hw_init_nfcal_hist(9)
• ath5k_hw_get_median_noise_floor(9)
• ath5k_hw_update_noise_floor(9)
• ath5k_hw_rf5110_calibrate(9)
• ath5k_hw_rf511x_iq_calibrate(9)
• ath5k_hw_phy_calibrate(9)
• ath5k_hw_set_spur_mitigation_filter(9)
• Antenna control(9)
• ath5k_hw_set_def_antenna(9)
• ath5k_hw_set_fast_div(9)
• ath5k_hw_set_antenna_switch(9)
• ath5k_hw_set_antenna_mode(9)
• ath5k_get_interpolated_value(9)
• ath5k_get_linear_pcdac_min(9)
• ath5k_create_power_curve(9)
• ath5k_get_chan_pcal_surrounding_piers(9)
• ath5k_get_rate_pcal_data(9)
• ath5k_get_max_ctl_power(9)
• Power to PCDAC table functions(9)
• ath5k_fill_pwr_to_pcdac_table(9)
• ath5k_combine_linear_pcdac_curves(9)
• ath5k_write_pcdac_table(9)
• Power to PDADC table functions(9)
• ath5k_combine_pwr_to_pdadc_curves(9)
• ath5k_write_pwr_to_pdadc_table(9)
• ath5k_setup_channel_powertable(9)
• ath5k_write_channel_powertable(9)
• Per-rate tx power setting(9)
• ath5k_setup_rate_powertable(9)
• ath5k_hw_txpower(9)
• ath5k_hw_set_txpower_limit(9)
• ath5k_hw_phy_init(9)

ngl bestie, if you're reading this page you're probably already deep in the ath5k PHY lore. respect. 🧚

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okay that's the whole page, mwah 💜 she's from <purple>./drivers/net/wireless/ath/ath5k</purple>, dated October 2026, and she's filed as ath5k_hw_update_nfcal_hist(9) in your friendly neighborhood Kernel API Manual. go update that history buffer, main character 🌈✨