atmel_smc_cs_encode_ncycles(9)

📦 version 7.3.1, in nixpkgs unstable

💅 atmel_smc_cs_encode_ncycles(9) — the Kernel API Manual, but make it make sense

okay so this is atmel_smc_cs_encode_ncycles(9) from the Kernel API Manual — yes bestie, we're reading kernel docs for fun now, this is who we are 🎀

✨ NAME ✨

atmel_smc_cs_encode_ncycles — lowkey the glow-up translator that encodes a number of MCK clk cycles into the exact format the SMC engine expects 👑

🌸 SYNOPSIS 🌸

int atmel_smc_cs_encode_ncycles (unsigned int ncycles , unsigned int
       msbpos , unsigned int msbwidth , unsigned int msbfactor , unsigned int
       *encodedval );

like, that's the whole vibe. five args, one return, zero chill 💀

🦋 ARGUMENTS 🦋

  • ncycles — the number of MCK clk cycles. this is the whole main character of the function fr fr ✨
  • msbpos — where the MSB part of the timing field sits. its little home address 📍
  • msbwidth — how wide the MSB part of the timing field is. giving measurements, giving precision 📏
  • msbfactor — the factor applied to the MSB. it's the multiplier era 🔥
  • encodedval — the param used to store the encoding result. this is where the answer goes to live, bestie 💖

🧚 DESCRIPTION 🧚

so what does it actually do? it encodes the ncycles value as described in the datasheet — specifically the section "SMC Setup/Pulse/Cycle/Timings Register". iykyk 📖✨

it's a generic helper, which means it gets called with different parameters depending on the encoding scheme. so it's like, adaptable. flexible. versatile. main character energy honestly 🫶

now the part where you need to pay attention 😭 if the ncycles value is too big to be encoded, the function returns -ERANGE and the encodedval contains the maximum val. dramatic? yes. necessary? also yes 💀

otherwise — and this is the slay case — 0 is returned. periodt ✅

🌈 SEE ALSO 🌈

go read the kernel file ./drivers/mfd/atmel-smc.c bestie, and while you're there these are all in the group chat too:

like a whole friend group of functions. obsessed 🦋

ngl, -ERANGE is not a vibe, but at least you get the maximum val out of it instead of nothing. silver lining behavior 💅

okay that's the page!! and for the cute sign-off: this one lives over in ./drivers/mfd, dated October 2026, and it's filed under atmel_smc_cs_encode_ncycles(9) in case you need to find it again. mwah, go encode some cycles 🎀💜

📦 where this page comes from