DFL_FPGA_FME_PORT_ASSIGN(9)

🌸 DFL_FPGA_FME_PORT_ASSIGN(9) 🌸

okay so welcome to the kernel API manual bestie, this one's a dfl_fpga ioctl and it's like... very niche but very important, iykyk 💅

✨ NAME ✨

DFL_FPGA_FME_PORT_ASSIGN — literally defined as _IOW(DFL_FPGA_MAGIC, DFL_FME_BASE + 2, int port_id) 🎀

like that's the whole signature, no cap, the _IOW macro is doing the absolute most and we respect it

🦋 SYNOPSIS 🦋

DFL_FPGA_FME_PORT_ASSIGN

that's it. that's the synopsis. short and iconic, main character energy fr fr ✨

💖 DESCRIPTION 💖

so the driver goes ahead and assigns the port back, per the Port ID that the caller hands over 🫶

the caller provides the port ID, the driver does the assigning-back thing, and honestly? slay. that's the whole vibe. no weird edge cases listed here, it just does the thing it says on the tin 💅

⭐ RETURN ⭐

• 0 — success, we ate, everyone's happy 🎉
• -errno — failure 😭 the negative errno value comes back at you, as is tradition

🎀 SEE ALSO 🎀

the kernel file to go peek at is ./include/uapi/linux/fpga-dfl.h — that's where all the friends live 🏠 and here's the whole squad, all (9) manuals, all iconic in their own right:

• DFL_FPGA_GET_API_VERSION(9)
• DFL_FPGA_CHECK_EXTENSION(9)
• DFL_FPGA_PORT_RESET(9)
• struct dfl_fpga_irq_set(9)
• DFL_FPGA_PORT_ERR_GET_IRQ_NUM(9)
• DFL_FPGA_PORT_ERR_SET_IRQ(9)
• DFL_FPGA_PORT_UINT_GET_IRQ_NUM(9)
• DFL_FPGA_PORT_UINT_SET_IRQ(9)
• DFL_FPGA_FME_PORT_RELEASE(9)
• DFL_FPGA_FME_ERR_GET_IRQ_NUM(9)
• DFL_FPGA_FME_ERR_SET_IRQ(9)

ngl DFL_FPGA_FME_PORT_RELEASE(9) is like the sibling of this one — release it, then assign it back — the circle of life 🦋✨

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and that's the whole page bestie!! 🍓 this lil cutie lives in ./include/uapi/linux, dated October 2026, and it's filed under DFL_FPGA_FME_PORT_ASSIGN(9) — go forth and assign those ports, you absolute icon 👑💜