MT2063_CalcLO2Mult(9)

💖 MT2063_CalcLO2Mult(9) — the Kernel API Manual glow-up 🎀

okay so bestie, we're in the kernel API manual and today's main character is MT2063_CalcLO2Mult. no cap, this little function is doing math so the tuner can tune. let's get into it ✨

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🌸 NAME 🌸

MT2063_CalcLO2Mult — Calculates Integer divider value and the numerator value for a FracN PLL. 💅

like, it literally hands you back the whole-number part and the fractional numerator so your FracN PLL knows what to do. periodt.

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🦋 SYNOPSIS 🦋

u32 MT2063_CalcLO2Mult (u32 *Div , u32 *FracN , u32 f_LO , u32 f_LO_Step
, u32 f_Ref );

she returns a u32, she takes five args, she's booked and busy. 🔥

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💜 ARGUMENTS 💜

• Div — OUTPUT: Whole number portion of the multiplier. this is the integer girly of the whole operation 👑
• FracN — OUTPUT: Fractional portion of the multiplier. the little decimal bestie that tags along 🫶
• f_LO — desired LO frequency. what we want, the dream 🌈
• f_LO_Step — Minimum step size for the LO (in Hz). the smallest move she's allowed to make, fr fr 🎀
• f_Ref — SRO frequency. the reference point we're measuring against, iykyk ⭐

heads up: Div and FracN are both OUTPUT params — that's what those * are doing. she writes into them, she doesn't read them. 💀 don't come for me, that's just how pointers work

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✨ DESCRIPTION ✨

okay so the whole vibe here: this function assumes that f_LO and f_Ref are evenly divisible by f_LO_Step. that's the fine print, bestie, and it's load-bearing — the math is not checking your work for you 🙈

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🍓 RETURN 🍓

Recalculated LO frequency. that's it, that's the return value, she's giving main character energy 💖

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🧚 SEE ALSO 🧚

• Kernel file ./drivers/media/tuners/mt2063.c
• IsSpurInBand(9)
• mt2063_lockStatus(9)
• MT2063_fLO_FractionalTerm(9)

go read those too, they're iconic in their own right 💅

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and that's the whole page, bestie — no cap, you ate that 🎉

source/version vibes: ./drivers/media/tuners — dated October 2026 🌸 mwah, see you in the next manpage 🫶