memcpy_fromio(9)

memcpy_fromio(9) — a page straight out of the Kernel API Manual, and yes bestie, we're getting into it. 💅

💖 NAME 💖

memcpy_fromio — copy a block of data from I/O memory. No cap, that's the whole name vibe. ✨

✨ SYNOPSIS ✨

void memcpy_fromio (void *dst , const volatile void __iomem *src ,
       size_t count );

🎀 ARGUMENTS 🎀

• dst — the (RAM) destination for the copy. 🎀
• src — the (I/O memory) source for the data. 🦋
• count — the number of bytes to copy. ✨

🦋 DESCRIPTION 🦋

Okay so picture this: there's a block of data hanging out in I/O memory, and this function copies it. That's the moment. 🫶

The description is literally “copy a block of data from I/O memory.” Slay, honestly. 💫

🌈 SEE ALSO 🌈

• Kernel file ./lib/iomem_copy.c — memset_io(9), memcpy_toio(9)

sign-off: this page's source/version is ./lib, dated October 2026. Bye bestie, go copy responsibly 💖✨