pci_find_doe_mailbox(9)

💅 pci_find_doe_mailbox(9) — from the Kernel API Manual 🎀

okay bestie, grab your iced coffee because we're diving into the kernel and this one is actually so cute and tiny. it's giving "small function, big main character energy" ✨

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🌸 NAME 🌸

pci_find_doe_mailbox — find that Data Object Exchange mailbox, periodt 💌

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🦋 SYNOPSIS 🦋

struct pci_doe_mb * pci_find_doe_mailbox (struct pci_dev *pdev , u16
vendor , u8 type );

like… she takes three args and hands you back a pointer. no cap, that's the whole vibe 🫶

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🍓 ARGUMENTS 🍓

• pdev — the PCI device we're snooping around in 🔍 lowkey the main character here
• vendor — the Vendor ID, a u16 bestie, don't forget it 💜
• type — the Data Object Type, a lil u8 🎀

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✨ DESCRIPTION ✨

so what she does is: she finds the first DOE mailbox of a PCI device that supports the given feature. that's it. that's the whole lore 💅 first one wins, no scrolling past it, okay?

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👑 RETURN 👑

you get a pointer to the DOE mailbox 🌈 …or NULL if none was found 😭 (yes, always check, bestie, fr fr — a NULL pointer will absolutely ruin your whole day and not in a slay way)

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💖 SEE ALSO 💖

• Kernel file ./drivers/pci/doe.c — go read the source, iykyk 📖
• struct pci_doe_mb(9)
• struct pci_doe_task(9)
• pci_doe_create_mb(9)
• pci_doe_destroy_mb(9)
• pci_doe_supports_feat(9)
• pci_doe_submit_task(9)
• pci_doe(9)

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ngl the whole DOE family is iconic, go give them a read when you're done here 🧚‍♀️💫

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and that's the page, bestie!! 🫶 this lil drop of kernel wisdom lives in ./drivers/pci, dated October 2026, and it's page pci_find_doe_mailbox(9) of the Kernel API Manual — mwah, go forth and find those mailboxes 💋🔥⭐