onenand_lock(9)

✨ onenand_lock(9) — Kernel API Manual, bestie edition ✨

okay so you opened the Kernel API Manual and landed on onenand_lock(9) — iconic. This page is short, cute, and very "lock the block(s), periodt." Let's get into it, no cap.

🎀 NAME 🎀

onenand_lock - [MTD Interface] Lock block(s) 💅

✨ SYNOPSIS ✨

int onenand_lock (struct mtd_info *mtd , loff_t ofs , uint64_t len );

💅 ARGUMENTS 💅

• mtd — the MTD device structure. That's the device bestie, the whole MTD situation 🫶
• ofs — offset relative to mtd start. So it's where you're starting from, relative to the MTD's beginning ✨
• len — number of bytes to unlock. Yes, the page literally says unlock here, and we're keeping it exactly as written 👀

🦋 DESCRIPTION 🦋

It does one thing and does it well: Lock one or more blocks. That's the description. One or more blocks get locked. No extra drama, no hidden subplot, just lock block(s) energy 💅

🌸 SEE ALSO 🌸

Kernel file: ./drivers/mtd/nand/onenand/onenand_base.c — and honestly the whole onenand group chat is linked here, so here is every single bestie in order:

• onenand_readw(9)
• onenand_writew(9)
• onenand_block_address(9)
• onenand_bufferram_address(9)
• onenand_page_address(9)
• onenand_buffer_address(9)
• flexonenand_block(9)
• flexonenand_addr(9)
• onenand_get_density(9)
• flexonenand_region(9)
• onenand_command(9)
• onenand_read_ecc(9)
• onenand_wait(9)
• onenand_bufferram_offset(9)
• onenand_read_bufferram(9)
• onenand_sync_read_bufferram(9)
• onenand_write_bufferram(9)
• onenand_get_2x_blockpage(9)
• onenand_check_bufferram(9)
• onenand_update_bufferram(9)
• onenand_invalidate_bufferram(9)
• onenand_get_device(9)
• onenand_release_device(9)
• onenand_transfer_auto_oob(9)
• onenand_recover_lsb(9)
• onenand_mlc_read_ops_nolock(9)
• onenand_read_ops_nolock(9)
• onenand_read_oob_nolock(9)
• onenand_read_oob(9)
• onenand_bbt_wait(9)
• onenand_bbt_read_oob(9)
• onenand_verify_oob(9)
• onenand_verify(9)
• onenand_panic_write(9)
• onenand_fill_auto_oob(9)
• onenand_write_ops_nolock(9)
• onenand_write_oob_nolock(9)
• onenand_write_oob(9)
• onenand_block_isbad_nolock(9)
• onenand_multiblock_erase(9)
• onenand_block_by_block_erase(9)
• onenand_erase(9)
• onenand_sync(9)
• onenand_block_isbad(9)
• onenand_default_block_markbad(9)
• onenand_block_markbad(9)
• onenand_do_lock_cmd(9)
• onenand_unlock(9)
• onenand_check_lock_status(9)
• onenand_unlock_all(9)
• onenand_otp_command(9)
• onenand_otp_write_oob_nolock(9)
• do_otp_read(9)
• do_otp_write(9)
• do_otp_lock(9)
• onenand_otp_walk(9)
• onenand_get_fact_prot_info(9)
• onenand_read_fact_prot_reg(9)
• onenand_get_user_prot_info(9)
• onenand_read_user_prot_reg(9)
• onenand_write_user_prot_reg(9)
• onenand_lock_user_prot_reg(9)
• onenand_check_features(9)
• onenand_print_device_info(9)
• onenand_check_maf(9)
• flexonenand_get_boundary(9)
• flexonenand_get_size(9)
• flexonenand_check_blocks_erased(9)
• onenand_chip_probe(9)
• onenand_probe(9)
• onenand_suspend(9)
• onenand_resume(9)
• onenand_scan(9)
• onenand_release(9)

made with 💖 from ./drivers/mtd/nand/onenand, October 2026 — that's the source/version and date, bestie, and we're out 🦋✨