ufshcd_configure_precoding(9)

✨ ufshcd_configure_precoding(9) ✨

okay bestie, welcome to the Kernel API Manual entry for ufshcd_configure_precoding — yes that's a whole mouthful, yes it's iconic, and yes we're gonna get through it together 💅

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💖 NAME 💖

ufshcd_configure_precoding — configure Pre-Coding for all active lanes 🦋

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🌸 SYNOPSIS 🌸

int ufshcd_configure_precoding (struct ufs_hba *hba , struct
       ufshcd_tx_eq_params *params );

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🎀 ARGUMENTS 🎀

• hba — the per adapter instance, aka your main character 🫶
• params — the TX EQ parameters data structure, where all the settings live ✨

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🔥 DESCRIPTION 🔥

so here's the tea ☕ — when bit [7] in RX_FOM is set, that's the receiver literally saying "hey, I need Pre-Coding enabled" 👑 and you gotta listen to it.

the vibe check on this one: Pre-Coding must be enabled on both the transmitter and the receiver for proper operation. no half-sending it, bestie. both sides or it doesn't slay 😭

Returns 0 on success, non-zero error code otherwise. periodt. 💀

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🦋 SEE ALSO 🦋

Kernel file ./drivers/ufs/core/ufs-txeq.c — go read it, iykyk 📖

• ufshcd_apply_tx_eq_settings(9)
• ufshcd_evaluate_tx_eqtr_fom(9)
• ufshcd_get_rx_fom(9)
• tx_eqtr_iter_try_update(9)
• tx_eqtr_iter_update(9)
• ufshcd_tx_eqtr_iter_init(9)
• adapt_cap_to_t_adapt(9)
• adapt_cap_to_t_adapt_l0l3(9)
• adapt_cap_to_t_adapt_l0l1l2l3(9)
• ufshcd_setup_tx_eqtr_adapt_length(9)
• ufshcd_compose_tx_eqtr_setting(9)
• ufshcd_apply_tx_eqtr_settings(9)
• ufshcd_update_tx_eq_params(9)
• __ufshcd_tx_eqtr(9)
• ufshcd_tx_eqtr_prepare(9)
• ufshcd_tx_eqtr(9)
• ufshcd_config_tx_eq_settings(9)
• ufshcd_apply_valid_tx_eq_settings(9)
• ufshcd_retrain_tx_eq(9)
• ufshcd_extract_tx_eq_settings_attrs(9)
• ufshcd_update_tx_eq_settings_attrs(9)

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💫 that's the whole page, bestie 💫 this one dropped from ./drivers/ufs/core, dated October 2026, and it's filed under ufshcd_configure_precoding(9) — go forth and enable pre-coding on both sides, mwah 😘🎀