zynqmp_pinc...are_pin_desc(9)

💅 zynqmp_pinc...are_pin_desc(9) 💅

okay so bestie, welcome to section 9 of the Kernel API Manual — yes, that's the kernel manual, and yes, that truncated little name up there is the whole vibe. it's zynqmp_pinc...are_pin_desc(9) fr fr, that's literally how it's printed. let's get into it 🎀

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✨ NAME ✨

zynqmp_pinctrl_prepare_pin_desc — prepare pin description info 🌸

like, it gets the pin desc ready. that's the whole job. iconic honestly.

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🦋 SYNOPSIS 🦋

int zynqmp_pinctrl_prepare_pin_desc (struct device *dev , const struct
pinctrl_pin_desc **zynqmp_pins , unsigned int *npins );

she takes three things and she returns an int. periodt.

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💜 ARGUMENTS 💜

• dev — Device pointer. the device in question. your main character device, if you will 🫶
• zynqmp_pins — Pin information. the pin info goes here ✨
• npins — Number of pins. how many pins we're talking about, bestie 💅

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🌈 DESCRIPTION 🌈

so what actually happens: she queries the number of pins info from the firmware, and then she prepares the pin description — which is the thing containing the pin number and the pin name. that's it. that's the whole glow-up. pin number + pin name = prepared pin description, and honestly? slay. 🧚

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⭐ RETURN ⭐

• 0 on success 🎉
• else, an error code 😭 (so like, vibe check failed, check the return value ngl)

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👑 SEE ALSO 👑

the kernel file is over here:

./drivers/pinctrl/pinctrl-zynqmp.c

and she's in very good company — go look at all her friends:

• struct zynqmp_pmux_function(9)
• struct zynqmp_pinctrl(9)
• struct zynqmp_pctrl_group(9)
• zynqmp_pmux_get_function_groups(9)
• zynqmp_pinmux_set_mux(9)
• zynqmp_pinconf_cfg_get(9)
• zynqmp_pinconf_cfg_set(9)
• zynqmp_pinconf_group_set(9)
• zynqmp_pinctrl_prepare_func_groups(9)
• zynqmp_pinctrl_create_pin_groups(9)
• zynqmp_pinctrl_prepare_group_pins(9)
• zynqmp_pinctrl_prepare_function_info(9)

literally the whole group chat 🔥

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ngl bestie, this one's a team player — she doesn't do the muxing or the pinconf herself, she just gets the pin descriptions set up so the rest of the squad (see above 👆) can do their thing.

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💖 that's a wrap, babe! this page lives in ./drivers/pinctrl, it's dated October 2026, and it's serving zynqmp_pinc...are_pin_desc(9) realness from the Kernel API Manual. go forth and prepare those pin descriptions ✨🎀🦋