it821x_probe_firmware(9)

💅 it821x_probe_firmware — kernel API manual, bestie edition 🎀

okay so this is the it821x_probe_firmware(9) page from the Kernel API Manual, and honestly? it's a short one, so you have zero excuse not to read the whole thing. it's giving "small but mighty" energy fr fr ✨

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🌸 NAME 🌸

it821x_probe_firmware — firmware reporting/setup, aka the little function that goes "hey bestie, what firmware are you running?" 👑🦋

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✨ SYNOPSIS ✨

void it821x_probe_firmware (struct ata_port *ap );

that's it. that's the whole signature. no return value, no drama, just vibes and a pointer 💅

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🎀 ARGUMENTS 🎀

• ap — the IT821x port being probed 🫶 like, the specific port that's getting the whole look-over right now. main character port energy, ngl.

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🌈 DESCRIPTION 🌈

so the way this works is: it goes and probes the firmware of the controller 🔍 by issuing firmware command 0xFA and then analysing the data that comes back. that's the whole bit. command goes out, data comes back, function looks at it and figures out what's up — reporting/setup, exactly like the name says 💖

no cap, that's genuinely all there is to it. short function, clear job, iconic behaviour ⭐

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🔥 SEE ALSO 🔥

the kernel file itself lives at ./drivers/ata/pata_it821x.c, and here's the whole friend group of related functions — go say hi to all of them 🧚:

• it821x_program(9)
• it821x_program_udma(9)
• it821x_clock_strategy(9)
• it821x_passthru_set_piomode(9)
• it821x_passthru_set_dmamode(9)
• it821x_passthru_bmdma_start(9)
• it821x_passthru_bmdma_stop(9)
• it821x_passthru_dev_select(9)
• it821x_smart_qc_issue(9)
• it821x_passthru_qc_issue(9)
• it821x_smart_set_mode(9)
• it821x_dev_config(9)
• it821x_read_id(9)
• it821x_check_atapi_dma(9)
• it821x_display_disk(9)
• it821x_firmware_command(9)
• it821x_port_start(9)
• it821x_rdc_cable(9)

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💜 and that's the page!! sourced from ./drivers/ata, dated October 2026, and it's the it821x_probe_firmware(9) entry from the Kernel API Manual. mwah, go read the source, ily, bye 😭🌸🎀