ps3_mmio_region_init(9)

💖 NAME 💖

Okay bestie, welcome to the ps3_mmio_region_init(9) page in the Kernel API Manual — it's giving helper-function energy and I'm lowkey obsessed. The name is:

ps3_mmio_region_init — Helper to initialize structure variables ✨

---

🌸 SYNOPSIS 🌸

       int ps3_mmio_region_init (struct ps3_system_bus_device *dev , struct
       ps3_mmio_region *r , unsigned long bus_addr , unsigned long len , enum
       ps3_mmio_page_size page_size );

---

💅 ARGUMENTS 💅

So the page is gorgeous, but the argument descriptions are literally not giving. Every single one says -- undescribed -- 💀 No cap, that's what's there:

• dev — the page says -- undescribed -- 🫠
• r — also -- undescribed -- 😭
• bus_addr — yep, -- undescribed -- again 🎀
• len — still -- undescribed -- bestie 🦋
• page_size — and this one? -- undescribed -- too 💀

---

🦋 DESCRIPTION 🦋

It's a helper to properly initialize variables prior to calling ps3_system_bus_device_register. That's the whole vibe: get your variables cute and initialized before you register the system bus device, periodt ✨

---

🔥 RETURN 🔥

• 0 on success 🎉
• -errno on error (or BUG) 😭

The page really says “or BUG” — so yeah, that's a thing, no cap. 💀

---

🎀 SEE ALSO 🎀

Go look at these icons if you want the full lore:

• Kernel file ./arch/powerpc/include/asm/ps3.h
• struct ps3_dma_region(9)
• struct ps3_mmio_region(9)
• struct ps3_system_bus_device(9)
• struct ps3_system_bus_driver(9)
• ps3_system_bus_set_drvdata(9)
• enum ps3_lpm_rights(9)
• enum ps3_lpm_tb_type(9)

---

This page's source/version tag is ./arch/powerpc/include/asm, dated October 2026 — mwah, bye bestie, slay responsibly 🫶✨💖