nand_check_wp(9)

okay so bestie, buckle up — this is nand_check_wp(9) straight out of the Kernel API Manual, and it's literally the tiniest little icon of a function. lowkey obsessed. let's get into it 💅

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✨ NAME ✨

nand_check_wp — [GENERIC] check if the chip is write protected

like, that's the whole job. one (1) job. and she ate. 🎀

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💖 SYNOPSIS 💖

int nand_check_wp (struct nand_chip *chip );

that's it. that's the whole vibe. no cap. ⭐

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🦋 ARGUMENTS 🦋

• chip — the NAND chip object, aka the main character of this whole situation. hand her over and she'll get checked 🫶

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🌸 DESCRIPTION 🌸

okay so what she does is: check if the device is write protected. that's the tea. ☕

but here's the important part, and ngl you cannot skip this — the function expects that the device is already selected. like, she is not gonna select it for you, she's not your manager, she's not doing that labor. you show up with the device already selected or you don't show up at all. periodt. 💀

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🔥 SEE ALSO 🔥

the kernel file in question lives at ./drivers/mtd/nand/raw/nand_base.c, and then there's... a lot of friends. like a group chat with 100+ members and every single one of them is in here. not me listing all of them. 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_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. everyone is here. it's giving family reunion 🌈

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aaaand that's the whole page, bestie 🧚 this little cutie is brought to you by ./drivers/mtd/nand/raw, dated October 2026 — so mark your calendar, screenshot it, frame it, whatever 💜💫