zl3073x_chan_tod_write(9)

📦 version 7.3.1, in nixpkgs unstable

💅 zl3073x_chan_tod_write — the kernel API manual, bestie edition ✨

okay so you found the zl3073x_chan_tod_write page in the Kernel API Manual and you're like "what does this even do" — don't worry, I got you 🫶. Real talk: this function writes the ToD registers and then triggers a 1 Hz update. Two things, one call, iconic behavior honestly 👑

✨ SYNOPSIS ✨

int zl3073x_chan_tod_write (struct zl3073x_dev *zldev , u8 ch , struct
timespec64 ts );

that's the whole signature, don't come for me about the line break, that's literally how it's printed 😭

🌸 ARGUMENTS 🌸

  • zldev — pointer to the zl3073x device 💖 this is your device, your main character
  • ch — the DPLL channel index 🎀 so like, which channel we're talking to
  • ts — the time to set ⏰ the whole point of the operation tbh

🦋 CONTEXT 🦋

heads up, this is important, no cap: the caller must serialize all zl3073x_chan_tod_* calls externally. as in, you handle the locking, bestie — the function is not gonna do it for you. so like every single one of those zl3073x_chan_tod_* calls needs to be serialized by you on the outside 🫶

ngl this is the kind of thing where if you skip it, things get real weird real fast 💀 external serialization, periodt.

💀 RETURN 💀

  • 0 — success, slay, we ate 👑
  • <0 — error, it's giving unfortunate 😭

🌈 SEE ALSO 🌈

kernel file ./drivers/dpll/zl3073x/chan.c — go read it, it's right there 💜

and the whole bestie squad of related calls:

that's the page, bestie 💅✨ this whole thing lives in ./drivers/dpll/zl3073x and it's dated October 2026 — so like, future vibes 🦋. mwah, go write those ToD registers 🎀💖

📦 where this page comes from