iwl_mvm_schedule_csa_period(9)

📦 version 7.3.1, in nixpkgs unstable

💅 iwl_mvm_schedule_csa_period(9) — like, the kernel API manual, bestie ✨

Okay so before we even get into it — this whole thing lives in the Kernel API Manual, and the function we're obsessing over today is iwl_mvm_schedule_csa_period(9). Yes, that's the whole name. It's giving main character energy already 🎀

🌸 NAME 🌸

iwl_mvm_schedule_csa_period — literally just requesting a channel switch absence period, no cap 💫

✨ SYNOPSIS ✨

int iwl_mvm_schedule_csa_period (struct iwl_mvm *mvm , struct
       ieee80211_vif *vif , u32 duration , u32 apply_time );

That's the whole signature, bestie — four args, one int coming back at you. Slay 🫶

🦋 ARGUMENTS 🦋

So here's the rundown of everyone invited to this function's party:

  • mvm — the mvm component. She's the whole vibe, the context of it all 💜
  • vif — the virtual interface for which the channel switch is issued. Like, which interface is doing the switching? This one 👑
  • duration — the duration of the NoA in TU. That's the length of the absence period, okay? 🕐
  • apply_time — NoA start time in GP2. When it kicks in, basically ⏰

🧚 DESCRIPTION 🧚

So what's she actually for? This function is used to schedule the NoA time event, and it's used to perform the channel switch flow. That's the tea ☕

Like — schedule the NoA time event, do the channel switch flow. That's it, that's the whole plot. Not complicated, just iconic 💅

⭐ RETURN ⭐

She returns a negative error code, or 0 on success. So like, if you get 0 you're thriving 💖 if you get negative, something went off and you have my condolences 😭

🌈 SEE ALSO 🌈

The whole friend group, fr fr — plus the kernel file where this all lives:

Kernel file ./drivers/net/wireless/intel/iwlwifi/mvm/time-event.h

Go read them, iykyk 📚✨

Full disclaimer bestie: this page is sourced from ./drivers/net/wireless/intel/i... and it's dated October 2026 — so yeah, mark your calendars 🗓️💀

And that's the page! iwl_mvm_schedule_csa_period(9) — request channel switch absence period, scheduled, slayed, periodt 🔥👑

📦 where this page comes from