atmel_smc_cs_conf_set_setup(9)

📦 version 7.3.1, in nixpkgs unstable

💅 atmel_smc_cs_conf_set_setup ✨

okay so this is a page from the Kernel API Manual and honestly? it's a tiny little function with main character energy. it sets one single xx_SETUP parameter on an SMC CS conf to a value you pick. that's it. that's the whole vibe. and it does it correctly, which is the slay part 🎀

✨ NAME ✨

atmel_smc_cs_conf_set_setup — set the SMC CS conf xx_SETUP parameter to a specific value 💖

🌸 SYNOPSIS 🌸

int atmel_smc_cs_conf_set_setup (struct atmel_smc_cs_conf *conf ,
unsigned int shift , unsigned int ncycles );

🦋 ARGUMENTS 🦋

  • conf — the SMC CS conf descriptor, your lil' struct bestie that holds everything 🫶
  • shift — where the xx_SETUP field sits in the SETUP register, like its little assigned seat iykyk
  • ncycles — the value you wanna assign to this xx_SETUP parameter, and it's expressed in MCK clk cycles ⭐

👑 DESCRIPTION 👑

so what this function actually does: it encodes the ncycles value exactly as described in the datasheet (section "SMC Setup Register" — go read it, no cap 📖), and then it stores the result in the conf->setup field at the shift position. iconic behavior tbh.

and the return situation, because we always check the return value bestie:

  • returns -EINVAL if shift is invalid 🙈
  • returns -ERANGE if ncycles does not fit in the field 💀
  • returns 0 otherwise ✅
fr fr, if you're getting -ERANGE your value is literally too big for the field, that's not a vibe check you can pass, go pick a smaller ncycles.

🌈 SEE ALSO 🌈

okay that's the whole page, mwah 💜 this one lives in ./drivers/mfd, and it's dated October 2026 — so yeah, future vibes only. go forth and set your SETUP params responsibly bestie, ily, bye 🧚‍♀️✨

📦 where this page comes from