ata_id_c_string(9)

💅 ata_id_c_string(9) — from the Kernel API Manual, bestie 🎀

okay so this is a page from the Kernel API Manual (the 9 section, kernel dev stuff, iykyk) and it's literally all about turning an IDENTIFY DEVICE page into a C string. tiny function, big vibes. let's go ✨

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🌸 NAME 🌸

ata_id_c_string — Convert IDENTIFY DEVICE page into C string 💖

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⭐ SYNOPSIS ⭐

void ata_id_c_string (const u16 *id , unsigned char *s , unsigned int
ofs , unsigned int len );

that's it. that's the whole signature. so clean, so iconic 🫶

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💅 ARGUMENTS 💅

• id — the IDENTIFY DEVICE results we will examine 👀 (yes, we will examine them, bestie)
• s — the string into which data is output 📝
• ofs — offset into the identify device page
• len — length of string to return. must be an odd number. ⚠️ not even. odd. remember that, it comes back later 💀

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✨ DESCRIPTION ✨

So this function is identical to ata_id_string — like, identical identical — except it does two extra things at the end: it trims trailing spaces 🧹 and it terminates the resulting string with null 🎀 periodt.

Also, len must be the actual maximum length (even number) + 1. yeah. i know. an even number plus one. that makes it odd. that's why the argument list said odd. it all connects. the girlies who read carefully are eating today 🔥

LOCKING: caller. that's it, that's the whole locking section. you handle it. main character responsibility 💅

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🦋 SEE ALSO 🦋

Kernel file ./drivers/ata/libata-core.c and honestly the entire extended universe of ata functions:

ata_link_next(9), ata_dev_next(9), ata_dev_phys_link(9), ata_force_cbl(9), ata_force_pflags(9), ata_force_link_limits(9), ata_force_xfermask(9), ata_force_quirks(9), atapi_cmd_type(9), ata_set_rwcmd_protocol(9), ata_tf_read_block(9), ata_build_rw_tf(9), ata_pack_xfermask(9), ata_unpack_xfermask(9), ata_xfer_mask2mode(9), ata_xfer_mode2mask(9), ata_xfer_mode2shift(9), ata_mode_string(9), ata_dev_classify(9), ata_id_string(9), ata_read_native_max_address(9), ata_set_max_sectors(9), ata_hpa_resize(9), ata_dump_id(9), ata_id_xfermask(9), ata_exec_internal(9), ata_pio_need_iordy(9), ata_pio_mask_no_iordy(9), ata_do_dev_read_id(9), ata_dev_read_id(9), ata_dev_power_set_standby(9), ata_dev_power_set_active(9), ata_read_log_page(9), ata_dev_configure(9), ata_cable_40wire(9), ata_cable_80wire(9), ata_cable_unknown(9), ata_cable_ignore(9), ata_cable_sata(9), sata_print_link_status(9), ata_dev_pair(9), ata_timing_cycle2mode(9), ata_down_xfermask_limit(9), ata_set_mode(9), ata_wait_ready(9), ata_wait_after_reset(9), ata_std_prereset(9), ata_std_postreset(9), ata_dev_same_device(9), ata_dev_reread_id(9), ata_dev_revalidate(9), ata_is_40wire(9), cable_is_40wire(9), ata_dev_xfermask(9), ata_dev_set_xfermode(9), ata_dev_set_feature(9), ata_dev_init_params(9), atapi_check_dma(9), ata_std_qc_defer(9), ata_sg_init(9), ata_sg_clean(9), ata_sg_setup(9), swap_buf_le16(9), ata_qc_free(9), ata_qc_complete(9), ata_qc_get_active(9), ata_qc_issue(9), ata_phys_link_online(9), ata_phys_link_offline(9), ata_link_online(9), ata_link_offline(9), ata_host_suspend(9), ata_host_resume(9), ata_dev_init(9), ata_link_init(9), sata_link_init_spd(9), ata_port_alloc(9), ata_host_alloc(9), ata_host_alloc_pinfo(9), ata_finalize_port_ops(9), ata_host_start(9), ata_host_init(9), ata_host_register(9), ata_host_activate(9), ata_dev_free_resources(9), ata_port_detach(9), ata_host_detach(9), ata_pci_remove_one(9), ata_platform_remove_one(9), ata_msleep(9), ata_wait_register(9)

that's a LOT of reading material. go off, king 👑

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and that's the whole page!! this little cutie lives in ./drivers/ata, dated October 2026 — yes, the future, she's ahead of her time 🦋💜 mwah, study up and slay your kernel module bestie 💖✨