pcs_get_pin_by_offset(9)

💅 pcs_get_pin_by_offset — a Kernel API Manual moment (section 9, bestie)

okay so this is pcs_get_pin_by_offset(9) from the Kernel API Manual, and yes we're getting into pinctrl internals, but don't panic — it's literally a one-liner of a concept and it's giving "small but mighty" ✨

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🌸 NAME 🌸

pcs_get_pin_by_offset — get a pin index based on the register offset

like, you give it an offset, it gives you back a pin index. that's the whole vibe. 🎀

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🦋 SYNOPSIS 🦋

int pcs_get_pin_by_offset (struct pcs_device *pcs , unsigned offset );

one function, two args, returns an int. no cap, that's it. 💖

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🧚 ARGUMENTS 🧚

• pcs — the pcs driver instance 🌈 (your main character struct, the whole reason we're here)
• offset — register offset from the base ⭐ (measured from base, bestie, don't forget the base)

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💜 DESCRIPTION 💜

okay so real talk — note that this is OK as long as the pins are in a static array. like, that's the condition, that's the caveat, that's the whole tea. 🫖 keep your pins static and you're slaying; don't, and, well… 🙈 the manpage says nothing else, so neither will I, periodt.

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👑 SEE ALSO 👑

the whole pinctrl-single.c friend group 💅 — this is the Kernel file ./drivers/pinctrl/pinctrl-single.c and everyone in it:

• struct pcs_func_vals(9)
• struct pcs_conf_vals(9)
• struct pcs_conf_type(9)
• struct pcs_function(9)
• struct pcs_gpiofunc_range(9)
• struct pcs_data(9)
• struct pcs_soc_data(9)
• struct pcs_device(9)
• pcs_add_pin(9)
• pcs_allocate_pin_table(9)
• pcs_add_function(9)
• pcs_parse_one_pinctrl_entry(9)
• pcs_dt_node_to_map(9)
• pcs_irq_free(9)
• pcs_free_resources(9)
• struct pcs_interrupt(9)
• pcs_irq_set(9)
• pcs_irq_mask(9)
• pcs_irq_unmask(9)
• pcs_irq_set_wake(9)
• pcs_irq_handle(9)
• pcs_irq_handler(9)
• pcs_irq_chain_handler(9)
• pcs_irq_init_chained_handler(9)
• pcs_quirk_missing_pinctrl_cells(9)

that's the whole squad fr fr 🔥

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💀 friendly reminder bestie: the "pins in a static array" thing is a real caveat, not just a vibe. it's in the DESCRIPTION for a reason, iykyk.

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and that's the page! 🎀 brought to you by ./drivers/pinctrl, dated October 2026 — mwah, love that for us 💋 see you in the next manpage, bestie 🦋💖