aspeed_gpio_copro_grab_gpio(9)

💅 aspeed_gpio_copro_grab_gpio(9)

okay bestie, welcome to the Kernel API Manual — this one's a little kernel-side baddie and honestly it's giving "don't touch my stuff" energy 🫶

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✨ NAME ✨

aspeed_gpio_copro_grab_gpio — Mark a GPIO used by the coprocessor. Your girl is calling dibs 💅 The entire bank gets marked, and any access from the ARM will result in handshaking via callbacks. no cap, the whole bank. the ARM has to knock first now 🚪✨

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🌸 SYNOPSIS 🌸

int aspeed_gpio_copro_grab_gpio (struct gpio_desc *desc , u16
*vreg_offset , u16 *dreg_offset , u8 *bit );

like, that's the whole vibe right there ⭐

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🎀 ARGUMENTS 🎀

• desc — The GPIO to be marked. the main character in question 👑
• vreg_offset — If non-NULL, returns the value register offset in the GPIO space. you pass a pointer, it hands you the offset 💖 (only if it's non-NULL tho, respect the boundaries)
• dreg_offset — If non-NULL, returns the data latch register offset in the GPIO space. same deal, pointer in, offset out 🦋
• bit — If non-NULL, returns the bit number of the GPIO in the registers. yes, the actual bit — she's specific 🔥

ngl, all three of those out-params are "if non-NULL" situations, so if you hand it a NULL you just get nothing back from that one. no drama, no crash implied, it's just skipped. iykyk 🙈

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpio/gpio-aspeed.c
• aspeed_gpio_copro_set_ops(9)
• aspeed_gpio_copro_release_gpio(9)

like go read those too, they're literally the friend group of this function 💜

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and that's the whole page, bestie! 🧚 this iconic little number lives in ./drivers/gpio and it's dated October 2026 — so yeah, it's from the future, slay ⭐💅🍓