modepin_gpio_dir_out(9)

💅 modepin_gpio_dir_out — like, the "make this pin an OUTPUT" function ✨

okay bestie, welcome to the Kernel API Manual 🎀 — yes, that Kernel API Manual, the one and only. today's main character is modepin_gpio_dir_out, and she has exactly one job: set the direction of the GPIO pin you point at to output. that's it. that's the whole vibe. no cap 🫶

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✨ NAME ✨

modepin_gpio_dir_out — set the direction of the specified GPIO pin as output 💅

like literally, you hand her a pin, she makes it an output. iconic behaviour, honestly.

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🦋 SYNOPSIS 🦋

int modepin_gpio_dir_out (struct gpio_chip *chip , unsigned int pin ,
       int state );

she returns an int, she takes a struct gpio_chip *chip, an unsigned int pin, and an int state. three arguments, zero drama. periodt 🔥

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🌸 ARGUMENTS 🌸

• chip — the gpio_chip instance you're working on 🧚 like, the whole chip bestie, the device she lives in
• pin — the gpio pin number within the device ✨ not the global one, the one inside this chip, okay?
• state — the value to be written to the specified pin 💖 so she knows what to write

lowkey the most important part: these are the real argument names, so don't go renaming them in your head, iykyk 🙈

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👑 RETURN 👑

0 always. 💀

not "usually", not "on success" — always. she does not miss. she does not fail. she returns 0 and she moves on with her life. slay.

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpio/gpio-zynqmp-modepin.c — go read the source, it's giving main character energy 📖
• modepin_gpio_get_value(9) — the "what's the value rn" bestie
• modepin_gpio_set_value(9) — the "write a value" bestie
• modepin_gpio_dir_in(9) — her opposite-direction sister 🦋
• modepin_gpio_probe(9) — the origin story, the setup arc ⭐

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okay that's the whole page, bestie, you ate that 🍓💜

mwah 💋 — this came from the ./drivers/gpio corner of the world, dated October 2026, and it's modepin_gpio_dir_out(9) saying byeeee ✨🎀