ENUM FE_CODE_RATE(9)

💅 enum fe_code_rate(9) — a Kernel API Manual moment, bestie

okay so listen, this is the enum fe_code_rate, and it lives in the Linux Kernel API Manual. Yes, that manual. The one your professor keeps flexing. Sit down, hydrate, and let's get into it 🫶

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✨ NAME ✨

enum fe_code_rate — the Type of Forward Error Correction (FEC), i.e. the whole cast of characters that tells you how much error-correction sauce is getting mixed into your signal 🎀

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🌸 SYNOPSIS 🌸

enum fe_code_rate {
    FEC_NONE ,
    FEC_1_2 ,
    FEC_2_3 ,
    FEC_3_4 ,
    FEC_4_5 ,
    FEC_5_6 ,
    FEC_6_7 ,
    FEC_7_8 ,
    FEC_8_9 ,
    FEC_AUTO ,
    FEC_3_5 ,
    FEC_9_10 ,
    FEC_2_5 ,
    FEC_1_3 ,
    FEC_1_4 ,
    FEC_5_9 ,
    FEC_7_9 ,
    FEC_8_15 ,
    FEC_11_15 ,
    FEC_13_18 ,
    FEC_9_20 ,
    FEC_11_20 ,
    FEC_23_36 ,
    FEC_25_36 ,
    FEC_13_45 ,
    FEC_26_45 ,
    FEC_28_45 ,
    FEC_32_45 ,
    FEC_77_90 ,
    FEC_11_45 ,
    FEC_4_15 ,
    FEC_14_45 ,
    FEC_7_15

};

like, look at that roster. every single one is here and accounted for 💀

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👑 Constants 👑

no cap, here's the full lineup, one by one, and yes I'm listing all thirty-three of them because we do not skip entries in this house 💖

• FEC_NONE — No Forward Error Correction Code. none. zero. the correction-free experience 🙈
• FEC_1_2 — Forward Error Correction Code 1/2
• FEC_2_3 — Forward Error Correction Code 2/3
• FEC_3_4 — Forward Error Correction Code 3/4
• FEC_4_5 — Forward Error Correction Code 4/5
• FEC_5_6 — Forward Error Correction Code 5/6
• FEC_6_7 — Forward Error Correction Code 6/7
• FEC_7_8 — Forward Error Correction Code 7/8
• FEC_8_9 — Forward Error Correction Code 8/9
• FEC_AUTO — Autodetect Error Correction Code. the main character that figures things out for you ✨
• FEC_3_5 — Forward Error Correction Code 3/5
• FEC_9_10 — Forward Error Correction Code 9/10
• FEC_2_5 — Forward Error Correction Code 2/5
• FEC_1_3 — Forward Error Correction Code 1/3
• FEC_1_4 — Forward Error Correction Code 1/4
• FEC_5_9 — Forward Error Correction Code 5/9
• FEC_7_9 — Forward Error Correction Code 7/9
• FEC_8_15 — Forward Error Correction Code 8/15
• FEC_11_15 — Forward Error Correction Code 11/15
• FEC_13_18 — Forward Error Correction Code 13/18
• FEC_9_20 — Forward Error Correction Code 9/20
• FEC_11_20 — Forward Error Correction Code 11/20
• FEC_23_36 — Forward Error Correction Code 23/36
• FEC_25_36 — Forward Error Correction Code 25/36
• FEC_13_45 — Forward Error Correction Code 13/45
• FEC_26_45 — Forward Error Correction Code 26/45
• FEC_28_45 — Forward Error Correction Code 28/45
• FEC_32_45 — Forward Error Correction Code 32/45
• FEC_77_90 — Forward Error Correction Code 77/90 (the way this one ate, honestly 🔥)
• FEC_11_45 — Forward Error Correction Code 11/45
• FEC_4_15 — Forward Error Correction Code 4/15
• FEC_14_45 — Forward Error Correction Code 14/45
• FEC_7_15 — Forward Error Correction Code 7/15

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🦋 Description 🦋

okay so quick vibe check before you go assuming things 👀

Please note that not all FEC types are supported by a given standard. like, the whole menu exists, but your particular standard is not obligated to order everything off it. no cap, check before you commit 💀

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🌈 SEE ALSO 🌈

go read the Kernel file ./include/uapi/linux/dvb/frontend.h first, it's the source of truth bestie 💜

and then the whole friend group:

• enum fe_caps(9)
• struct dvb_frontend_info(9)
• struct dvb_diseqc_master_cmd(9)
• struct dvb_diseqc_slave_reply(9)
• enum fe_sec_voltage(9)
• enum fe_sec_tone_mode(9)
• enum fe_sec_mini_cmd(9)
• enum fe_status(9)
• enum fe_spectral_inversion(9)
• enum fe_modulation(9)
• enum fe_transmit_mode(9)
• enum fe_guard_interval(9)
• enum fe_hierarchy(9)
• enum fe_interleaving(9)
• enum fe_pilot(9)
• enum fe_rolloff(9)
• enum fe_delivery_system(9)
• enum atscmh_sccc_block_mode(9)
• enum atscmh_sccc_code_mode(9)
• enum atscmh_rs_frame_ensemble(9)
• enum atscmh_rs_frame_mode(9)
• enum atscmh_rs_code_mode(9)
• enum fecap_scale_params(9)
• struct dtv_stats(9)
• struct dtv_fe_stats(9)
• struct dtv_property(9)
• struct dtv_properties(9)

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and that's the whole page, periodt 💅 this little gem comes straight out of ./include/uapi/linux/dvb, from the October 2026 edition of the Kernel API Manual — so if you see it floating around, you'll know exactly where it came from 🧚⭐

go slay your FEC decoding, bestie 🍓💖