logic_pio_trans_hwaddr(9)

✨ NAME ✨

logic_pio_trans_hwaddr — bestie, this is the little function that takes a hardware address and translates it into a logical PIO address 💅 (it's a section 9 kernel API manual page, iykyk 🫶).

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🌸 SYNOPSIS 🌸

unsigned long logic_pio_trans_hwaddr (const struct fwnode_handle *fwnode
, resource_size_t addr , resource_size_t size );

That's the whole vibe ✨ — one function, three args, one unsigned long coming back to you 🎀

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🦋 ARGUMENTS 🦋

• fwnode — the FW node reference for the host, like the little fingerprint that says which host we're talking about 🔍
• addr — the host-relative HW address, aka the address as that host sees it 💖
• size — the size you want translated, periodt 📏

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💜 DESCRIPTION 💜

The way this works is so straightforward it's giving main character energy 👑: it returns the Logical PIO value if it's successful 🎉, and ~0UL otherwise 😭 no in-between, no drama, fr fr.

Heads up: ~0UL is the "nope, didn't work" answer here — if you see that come back, the translation did not slay 💀

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⭐ SEE ALSO ⭐

Kernel file ./lib/logic_pio.c, plus these absolute icons, go check them out bestie 🌈:

• logic_pio_register_range(9)
• logic_pio_unregister_range(9)
• find_io_range_by_fwnode(9)
• logic_pio_to_hwaddr(9)

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That's the whole page, bestie 🫶 — brought to you from ./lib, dated October 2026, and honestly? iconic 💖✨🎀