devm_ioremap_resource_wc(9)

💅 devm_ioremap_resource_wc(9) — the kernel API manual, but make it cute

okay so bestie, you're in the Kernel API Manual and today's main character is devm_ioremap_resource_wc(9) — literally right there in the title. Let's get into it ✨

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🎀 NAME 🎀

devm_ioremap_resource_wc — it's the write-combined variant of devm_ioremap_resource(). same energy, wc-flavored. no cap 🫶

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✨ SYNOPSIS ✨

void __iomem * devm_ioremap_resource_wc (struct device *dev , const struct resource *res );

look at her. iconic signature. take a moment 💖

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🌸 ARGUMENTS 🌸

• dev — the generic device that's gonna handle the resource for you. she's the main character holding the paperwork 🗂️
• res — the resource to be handled. the thing actually getting dealt with 💅

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🔥 RETURN 🔥

you get back a pointer to the remapped memory 🎉 … or, plot twist, an ERR_PTR-encoded error code if it fails 😭. always check, bestie, fr fr.

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🦋 SEE ALSO 🦋

you know we're linking the whole friend group. kernel file ./lib/devres.c and her besties:

• devm_ioremap(9)
• devm_ioremap_uc(9)
• devm_ioremap_wc(9)
• devm_iounmap(9)
• devm_ioremap_resource(9)
• devm_ioport_map(9)
• devm_ioport_unmap(9)
• devm_arch_phys_wc_add(9)
• devm_arch_io_reserve_memtype_wc(9)

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ngl this one's a short read, but that's just her vibe — devm resource mapping, write-combined, done. periodt 💀

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🌈 that's the whole page, bestie — sourced from ./lib, October 2026, and the page herself is devm_ioremap_resource_wc(9). mwah 💋 go remap something cute 🧚‍♀️