ice_dpll_pin...irection_set(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ice_dpll_pin...irection_set(9) 💅

okay bestie, quick vibe check: this is a page from the Kernel API Manual, and the star of the show is ice_dpll_pin...irection_set(9). It's short, it's sweet, and it's very specific. Let's get into it 🫶

✨ NAME ✨

ice_dpll_pin_sma_direction_set — the callback that handles setting the direction of an SMA pin. that's it, that's the whole job, and honestly? iconic of it 💅

🎀 SYNOPSIS 🎀

int ice_dpll_pin_sma_direction_set (const struct dpll_pin *pin , void
*pin_priv , const struct dpll_device *dpll , void *dpll_priv , enum
dpll_pin_direction direction , struct netlink_ext_ack *extack );

look at all those parameters, no cap, it's giving "I take my arguments seriously" 💀

🌸 ARGUMENTS 🌸

  • pin — pointer to a pin. just a lil pointer, pointing at a pin 🎀
  • pin_priv — private data pointer that was passed on pin registration. it's the pin's personal lore, kept private 🔒
  • dpll — the registered dpll pointer. yes, this one's actually registered, we checked ✨
  • dpll_priv — private data pointer that was passed on dpll registration. the dpll's own private stash 🫶
  • direction — the requested pin direction, typed as enum dpll_pin_direction. this is the whole reason we're here 🌈
  • extack — error reporting. it's giving "struct netlink_ext_ack" and it's here to carry the bad news if something goes wrong 😭

🦋 DESCRIPTION 🦋

So this is a Dpll subsystem callback — big deal, lowkey. It's the handler for setting the direction of a SMA pin. Someone wants the direction changed, this function is the one who answers the call, main character energy 👑

no extra lore, no secret side quests. direction gets set. slay ✨

⭐ CONTEXT ⭐

It acquires and releases pf->dplls.lock.

so yeah. it grabs the lock, does its thing, and puts the lock back where it found it. lock etiquette: immaculate 🔐💜

🔥 RETURN 🔥

  • 0 — success 🎉 (the good ending)
  • negative — error 😭 (the "we don't talk about it" ending)

that's literally the whole return contract, bestie. zero means we ate. negative means we did not 💀

🌈 SEE ALSO 🌈

Kernel file ./drivers/net/ethernet/intel/ice/ice_dpll.c and honestly the whole extended friend group:

like I said. extended friend group. all of them invited to the group chat 💜

and that's the page! source vibes come from ./drivers/net/ethernet/intel/ice, dated October 2026, and we're closing out ice_dpll_pin...irection_set(9) with a little kiss on the forehead 😘💖 go set some directions, bestie 🦋

📦 where this page comes from