gpiochip_fw...et_direction(9)

✨ NAME ✨

okay so bestie, welcome to the gpiochip_fw...et_direction(9) page in the Kernel API Manual — header line folded in near the top, cute style only 💅. The function is gpiochip_fwd_gpio_get_direction, and it does exactly one iconic thing: Return the current direction of a GPIO forwarder line. periodt.

🦋 SYNOPSIS 🦋

here's the signature, copied exactly so ur not guessing:

int gpiochip_fwd_gpio_get_direction (struct gpiochip_fwd *fwd , unsigned
       int offset );

🎀 ARGUMENTS 🎀

• fwd — GPIO forwarder. literally the forwarder, bestie.
• offset — the offset of the line. that's the line offset, no cap.

🔥 RETURN 🔥

vibe check: 0 for output, 1 for input, or an error code in case of error. so 0 is output energy, 1 is input energy, and an error code means something went off 😭.

🌈 SEE ALSO 🌈

Kernel file ./drivers/gpio/gpio-aggregator.c — that's the source file, iykyk.

the see-also squad, all present and iconic:

• gpiochip_fwd_get_gpiochip(9)
• gpiochip_fwd_get_data(9)
• gpiochip_fwd_gpio_request(9)
• gpiochip_fwd_gpio_direction_output(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)

sign-off szn 🫶: source/version is ./drivers/gpio, date is October 2026, and the page is gpiochip_fw...et_direction(9). mwah, bestie 💖✨