SDIO_DEVICE(9)

🎀 SDIO_DEVICE(9) — Kernel API Manual 🎀

okay bestie, welcome to the Kernel API Manual page for SDIO_DEVICE(9) — it’s short, it’s iconic, and it does exactly one little job. no cap. 💅

✨ NAME ✨

SDIO_DEVICE — macro used to describe a specific SDIO device. periodt. 💖

📜 SYNOPSIS 📜

SDIO_DEVICE (vend , dev );

yeah, that spacing is literally how it’s written — don’t come for me 🙈

🫶 ARGUMENTS 🫶

• vend — the 16 bit manufacturer code. lowkey the who-made-it number. 🏷️
• dev — the 16 bit function id. the specific-function number, iykyk. 🔢

💫 DESCRIPTION 💫

This macro is used to create a struct sdio_device_id that matches a specific device. it’s giving “one device, one little ID struct” energy. 🦋

The class field will be set to SDIO_ANY_ID. that’s the one detail you cannot skip, bestie — it’s right there in the source. 👑

🌈 SEE ALSO 🌈

• Kernel file ./include/linux/mmc/sdio_func.h — go read it, it’s right there. 📂
• SDIO_DEVICE_CLASS(9) — the class-y sibling. ✨
• module_sdio_driver(9) — the driver-side friend. 🚗

bestie reminder: this page is tiny but every bit matters — keep the 16 bit values and SDIO_ANY_ID exactly as they are. 💯

and that’s the whole vibe check! this page’s footer points at the source/version path ./include/linux/mmc, dated October 2026 — slay, now go forth and match those devices. 💅🎀