stmmac_get_hw_features(9)

📦 version 7.3.1, in nixpkgs unstable

💖 stmmac_get_hw_features(9) 💖

okay so bestie, quick vibe check: this is a page from the Kernel API Manual, and it's literally called stmmac_get_hw_features. yes it's giving driver-internals realness and yes i'm obsessed. let's get into it 🫶

✨ NAME ✨

stmmac_get_hw_features — grab the MAC capabilities straight outta the HW cap. register, no cap 🧢

🦋 SYNOPSIS 🦋

int stmmac_get_hw_features (struct stmmac_priv *priv );

🎀 ARGUMENTS 🎀

  • priv — the driver's own private structure. it's the main character here, the little data blob that knows everything about this particular instance 💅

🌸 DESCRIPTION 🌸

so the new-gen GMAC chips dropped with a whole new register whose entire job is to announce which optional features/functions are actually present — like a little hardware brag board 👑

and here's the tea: this same register can also be used to override the value that got passed in through the platform. which matters, because that platform-passed value is necessary for the old MAC10/100 and GMAC chips. so yeah, old silicon still needs its lil fallback and this function is out here handling both worlds fr fr 🧚

💜 SEE ALSO 💜

the kernel file this lives in, iconic:

  • ./drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

and now the whole friend group — every single one of these, no skipping, i love a complete roster 😭✨:

ngl that's a lot of cross-refs but every single one of them is valid and i refuse to ghost any of them 💀

okay that's the whole page bestie, hope the vibe check passed 💜

sign-off time 🎀 this one's sourced from ./drivers/net/ethernet/stmicro... and dated October 2026 — so yeah, future-flavored manual page energy, slay ✨

📦 where this page comes from