scsi_bios_ptable(9)

💾 scsi_bios_ptable(9) — bestie edition 🎀

ok so this is a page from the Kernel API Manual (yes that's the manual name, she's official 💅) and it's literally about yoinking a PC partition table out of the very first sector of a device. tiny function, big main character energy. let's get into it ✨

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✨ NAME ✨

scsi_bios_ptable — Read PC partition table out of first sector of device.

like, she reads the PC partition table. out of the first sector. of the device. that's the whole vibe 🫶

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🌸 SYNOPSIS 🌸

unsigned char * scsi_bios_ptable (struct gendisk *dev );

no cap, that's the whole signature 👑

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🦋 ARGUMENTS 🦋

• dev — from this device. that's it, that's the argument. she takes the device you hand her and goes to work 💖

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💫 DESCRIPTION 💫

okay so here's what she actually does: she reads the first sector from the device, then hands you back 0x42 bytes starting at offset 0x1be. periodt. that's the entire personality 🎀

lowkey the 0x42 and the 0x1be are the whole point — like, don't touch them, don't round them, they're iconic and they're staying 🔥

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👑 RETURN 👑

you get the partition table back in kmalloc(GFP_KERNEL) memory 💖 — or NULL on error, in which case 😭. that's it. that's the return value.

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/scsi/scsicam.c — the source file, go read her 📖
• scsi_partsize(9) — her friend
• scsicam_bios_param(9) — her other friend 🫶

they're all hanging out together, iykyk 💜

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ok that's the page!! mwah 💋 this lil sign-off is brought to you by the source ./drivers/scsi and dated October 2026 — iconic, no notes, she ate and left zero crumbs 🧚‍♀️⭐🌸