nand_release_device(9)

💅 nand_release_device — the nand_release_device(9) era

okay so bestie, we're in the Kernel API Manual today (yes, that manual, the one with the good stuff) and the star of the show is nand_release_device(9). buckle up 🎀

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✨ NAME ✨

nand_release_device — hiiii it's the [GENERIC] release chip girlies' moment 💖

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🦋 SYNOPSIS 🦋

void nand_release_device (struct nand_chip *chip );

that's it. that's the whole vibe. no return value, just vibes and a pointer ✨

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🌸 ARGUMENTS 🌸

• chip — the NAND chip object in question 👑 your main character struct, fr fr

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💜 DESCRIPTION 💜

so what does it do? literally two things and she does them both flawlessly:

• releases the chip lock 🔓
• wakes up anyone waiting on the device 😴➡️😳

no cap, that's the entire job. she's not doing tricks, she's not doing flips, she's unlocking and she's waking people up. iconic behaviour, honestly 🫶

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🧚 SEE ALSO 🧚

bestie there are SO many siblings, but I'm not gonna gatekeep a single one, so here's the whole friend group. they all live in the Kernel file ./drivers/mtd/nand/raw/nand_base.c 📂 (iykyk):

nand_extract_bits(9), nand_select_target(9), nand_deselect_target(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_set_features_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 I said. a lot of siblings. and every single one of them made the list 💅

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💫 and that's the page!! 💫

this little love letter to ./drivers/mtd/nand/raw dropped October 2026, so if you're reading it from a happier, later timeline — hi, hope the NAND is behaving 🍓 stay slay, wake up your waiters, release those locks, and remember: nand_release_device(9) would never leave you on read 💖🎀