modepin_gpio_get_value(9)

💅 modepin_gpio_get_value(9) 💅

okay so bestie, this is a page from the Kernel API Manual, and it's all about one lil function that checks the state of a GPIO pin. no cap, that's the whole assignment. 🦋

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🌸 NAME 🌸

modepin_gpio_get_value — Get the state of the specified pin of GPIO device. ✨

✨ SYNOPSIS ✨

int modepin_gpio_get_value (struct gpio_chip *chip , unsigned int pin );

that's the signature, and yes, the spaces are exactly like that. we respect the source. 💅

🎀 ARGUMENTS 🎀

• chip — the gpio_chip instance to be worked on. main character energy fr fr.
• pin — the gpio pin number within the device. lowkey important, bestie.

🧚 DESCRIPTION 🧚

so what does it do? it literally reads the state of the specified pin of the GPIO device. that's it, that's the tea. ☕✨

🔥 RETURN 🔥

here's the vibe check:

• 0 if the pin is low. 🍓
• 1 if pin is high. 🔥
• -EINVAL — wrong pin configured or error value. 😭

🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpio/gpio-zynqmp-modepin.c — go read it, iykyk. 👑
• modepin_gpio_set_value(9), modepin_gpio_dir_in(9), modepin_gpio_dir_out(9), modepin_gpio_probe(9) — the whole friend group, periodt. 🫶

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xoxo, source/version ./drivers/gpio, date October 2026 💖🫶✨