exynos_usi_set_sw_conf(9)

✨ exynos_usi_set_sw_conf(9) ✨

okay so this is a page from the Kernel API Manual bestie — it's all about exynos_usi_set_sw_conf, and no, that's not a keyboard smash, it's a real function and it's kind of iconic. 💅

---

💖 NAME 💖

exynos_usi_set_sw_conf — literally just sets the configuration mode of a USI block. that's the whole vibe. 🎀

---

🦋 SYNOPSIS 🦋

int exynos_usi_set_sw_conf (struct exynos_usi *usi , size_t mode );

like, you hand it a usi and a mode, and it returns an int. straightforward queen behavior. ✨

---

🌸 ARGUMENTS 🌸

• usi — the USI driver object 💜 (yes, it's a struct exynos_usi *, she's got range)
• mode — the mode index 🎀 (a size_t, so pick your number wisely)

---

🔥 DESCRIPTION 🔥

bestie. this is the part where it actually picks the serial protocol for the USI IP-core. we're talking UART, SPI, or I2C — the underlying one, the real one, the main character of the bus. not me being obsessed with protocol selection but like… it IS the whole point of the function. 🫶

so yeah: it selects the underlying serial protocol (UART/SPI/I2C) in the USI IP-core. periodt. 🌈

---

⭐ RETURN ⭐

• 0 on success 🥳
• a negative error code on failure 😭 (so check it, ngl)

---

🧚 SEE ALSO 🧚

• the kernel file ./drivers/soc/samsung/exynos-usi.c 🍓
• exynos_usi_enable(9) — go read that one too, iykyk 👑

---

lowkey reminder: this page lives in ./drivers/soc/samsung and it's dated October 2026, so if you're reading this in the future… hi bestie, hope the kernel's slaying 💀✨

anyway that's the whole manual page, mwah, go set some software config, you're doing amazing 💖✨🎀🦋🌸💅🫶