gpiochip_fwd...ction_output(9)

✨ gpiochip_fwd_gpio_direction_output(9) — bestie's guide to the Kernel API Manual ✨

okay so real talk, this page lives in the Kernel API Manual, and it's all about gpiochip_fwd_gpio_direction_output — the lil' function that points a GPIO forwarder line at the output direction. no cap, that's the whole vibe. 🦋

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🎀 NAME 🎀

gpiochip_fwd_gpio_direction_output — literally sets a GPIO forwarder line direction to output. that's it, that's the function, and she ate. 💅

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🌸 SYNOPSIS 🌸

int gpiochip_fwd_gpio_direction_output (struct gpiochip_fwd *fwd ,
unsigned int offset , int value );

look at her go 😭 three whole params, iconic.

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💖 ARGUMENTS 💖

• fwd — the GPIO forwarder itself. your main character struct 🫶
• offset — the offset of the line. which line? this line, bestie ✨
• value — the value to set. yes queen, pick one 🔥

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⭐ RETURN ⭐

0 on success, or a negative errno on failure. slay when it's 0, and when it's negative? yeah that's a vibe check fail, handle it 💀

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🌈 SEE ALSO 🌈

the kernel file this lives in, for when you wanna go read the source like the academic weapon you are:

• Kernel file ./drivers/gpio/gpio-aggregator.c

and the whole friend group of related functions, no one left behind:

• gpiochip_fwd_get_gpiochip(9)
• gpiochip_fwd_get_data(9)
• gpiochip_fwd_gpio_request(9)
• gpiochip_fwd_gpio_get_direction(9)
• gpiochip_fwd_gpio_direction_input(9)
• gpiochip_fwd_gpio_get(9)
• gpiochip_fwd_gpio_get_multiple(9)
• gpiochip_fwd_gpio_set(9)
• gpiochip_fwd_gpio_set_multiple(9)
• gpiochip_fwd_gpio_set_config(9)
• gpiochip_fwd_gpio_to_irq(9)
• devm_gpiochip_fwd_alloc(9)
• gpiochip_fwd_desc_add(9)
• gpiochip_fwd_desc_free(9)
• gpiochip_fwd_register(9)
• gpiochip_fwd_create(9)

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ngl, if you made it this far you're lowkey a kernel girlie now. go set some directions to output, periodt 💜

anyway bestie, this page is from ./drivers/gpio, dated October 2026 — stan the kernel docs, they're always serving 🍓🧚‍♀️