nand_set_features_op(9)

💅 nand_set_features_op(9) — a Kernel API Manual moment 🎀

ok so bestie, buckle up, we're in the Kernel API Manual today and this one's a lil NAND flash baddie. it's called nand_set_features_op and honestly? she does exactly what her name says and nothing extra. iconic behavior fr fr.

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✨ NAME ✨

nand_set_features_op — literally just doing a SET FEATURES operation. that's it. that's the whole job. 💁‍♀️

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🌸 SYNOPSIS 🌸

int nand_set_features_op (struct nand_chip *chip , u8 feature , const
       void *data );

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🦋 ARGUMENTS 🦋

• chip — the NAND chip in question, the main character of this whole situation 🫶
• feature — the feature id. which feature? that's for you to know, bestie 🎀
• data — exactly 4 bytes of data. four. not three, not five. four 😭

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💜 DESCRIPTION 💜

ok so here's the tea ☕ — this function sends a SET FEATURES command, and then it waits for the NAND to be ready before it comes back to you. no rushing, no skipping the vibe check. it waits. periodt.

🚨 important caveat incoming: this function does not select/unselect the CS line. nope. not her job. do not come for her about the CS line, she simply does not handle it 🙈

returns 0 on success, or a negative error code otherwise. slay when it's 0, weep softly when it's negative 💀

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🔥 SEE ALSO 🔥

the kernel file lives at ./drivers/mtd/nand/raw/nand_base.c, and here's the whole group chat of related functions (she knows everyone, iykyk):

nand_extract_bits(9), nand_select_target(9), nand_deselect_target(9), nand_release_device(9), nand_bbm_get_next_page(9), nand_block_bad(9), nand_region_is_secured(9), nand_get_device(9), nand_check_wp(9), nand_fill_oob(9), nand_do_write_oob(9), nand_default_block_markbad(9), nand_markbad_bbm(9), nand_block_markbad_lowlevel(9), nand_block_isreserved(9), nand_block_checkbad(9), nand_soft_waitrdy(9), nand_gpio_waitrdy(9), panic_nand_wait(9), nand_reset_interface(9), nand_setup_interface(9), nand_choose_best_sdr_timings(9), nand_choose_best_nvddr_timings(9), nand_choose_best_timings(9), nand_choose_interface_config(9), nand_fill_column_cycles(9), nand_read_page_op(9), nand_read_param_page_op(9), nand_change_read_column_op(9), nand_read_oob_op(9), nand_prog_page_begin_op(9), nand_prog_page_end_op(9), nand_prog_page_op(9), nand_change_write_column_op(9), nand_readid_op(9), nand_status_op(9), nand_exit_status_op(9), nand_erase_op(9), nand_get_features_op(9), nand_reset_op(9), nand_read_data_op(9), nand_write_data_op(9), struct nand_op_parser_ctx(9), nand_op_parser_must_split_instr(9), nand_op_parser_match_pat(9), nand_op_parser_exec_op(9), nand_subop_get_addr_start_off(9), nand_subop_get_num_addr_cyc(9), nand_subop_get_data_start_off(9), nand_subop_get_data_len(9), nand_reset(9), nand_get_features(9), nand_set_features(9), nand_read_page_raw_notsupp(9), nand_read_page_raw(9), nand_monolithic_read_page_raw(9), nand_read_page_raw_syndrome(9), nand_read_page_swecc(9), nand_read_subpage(9), nand_read_page_hwecc(9), nand_read_page_hwecc_oob_first(9), nand_read_page_syndrome(9), nand_transfer_oob(9), nand_setup_read_retry(9), nand_do_read_ops(9), nand_read_oob_std(9), nand_read_oob_syndrome(9), nand_write_oob_std(9), nand_write_oob_syndrome(9), nand_do_read_oob(9), nand_read_oob(9), nand_write_page_raw_notsupp(9), nand_write_page_raw(9), nand_monolithic_write_page_raw(9), nand_write_page_raw_syndrome(9), nand_write_page_swecc(9), nand_write_page_hwecc(9), nand_write_subpage_hwecc(9), nand_write_page_syndrome(9), nand_write_page(9), nand_do_write_ops(9), panic_nand_write(9), nand_write_oob(9), nand_erase(9), nand_erase_nand(9), nand_sync(9), nand_block_isbad(9), nand_block_markbad(9), nand_suspend(9), nand_resume(9), nand_shutdown(9), nand_lock(9), nand_unlock(9), rawnand_dt_parse_gpio_cs(9), nand_scan_ident(9), nand_check_ecc_caps(9), nand_match_ecc_req(9), nand_maximize_ecc(9), nand_ecc_choose_conf(9), nand_scan_tail(9), nand_scan_with_ids(9), nand_cleanup(9)

like. that's a lot of friends. she's popular. we been knew 👑

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and that's the whole page, bestie — go forth and SET FEATURES responsibly 💖

so this lil drop comes to you from ./drivers/mtd/nand/raw and it's dated October 2026 — yeah, from the future, because she's ahead of her time ⭐ mwah, ily, go read nand_base.c 🧚‍♀️✨