voltdm_get_voltage(9)

✨ voltdm_get_voltage 💅

okay bestie, so this is a page from the Kernel API Manual — section 9, kernel developer land 🧚 — and it's all about voltdm_get_voltage. it's short, it's sweet, and it literally just tells you what voltage a voltage domain is running at right now. no cap. 🎀

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🌸 SYNOPSIS 🌸

unsigned long voltdm_get_voltage (struct voltagedomain *voltdm );

that's it. one arg, one return. she's lowkey minimal and i respect it. ✨

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🦋 ARGUMENTS 🦋

• voltdm — pointer to the voltdm whose current voltage info you're craving. like, hand her the domain and she'll tell you what's up 💖

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🔥 DESCRIPTION 🔥

okay so this is the API to get the current non-auto-compensated voltage for a voltage domain. read that again: non-auto-compensated. that's the whole vibe of this function, bestie — don't forget it 💅

it returns 0 in case of error, otherwise it returns the current voltage. that's the entire contract. iconic behaviour honestly 👑

⚠️ heads up: 0 is the error signal here, so don't go reading a zero as "wow the voltage is zero, slay" — it's giving error, not data 😭

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💜 SEE ALSO 💜

sibling functions in the kernel file ./arch/arm/mach-omap2/voltage.c — go say hi, they're all part of the same friend group 🫶

• voltdm_scale(9)
• voltdm_reset(9)
• omap_voltage_get_volttable(9)
• omap_voltage_get_voltdata(9)
• omap_voltage_register_pmic(9)
• omap_voltage_late_init(9)
• voltdm_lookup(9)
• voltdm_init(9)

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and that's the whole page, bestie — you ate that 💅✨ this lil gem lives in ./arch/arm/mach-omap2 (October 2026, Kernel API Manual, voltdm_get_voltage(9)) — go forth and read your voltages responsibly 🎀💖🦋