stmmac_hw_setup(9)

📦 version 7.3.1, in nixpkgs unstable

💖 stmmac_hw_setup(9) — the Kernel API Manual glow-up 💖

okay so bestie, welcome to the Kernel API Manual, and today's main character is stmmac_hw_setup. grab a strawberry drink 🍓 and let's get into it.

✨ NAME ✨

stmmac_hw_setup — setup mac in a usable state. that's it, that's the whole vibe. we're getting the MAC dressed and ready to go out. 💅

🌸 SYNOPSIS 🌸

int stmmac_hw_setup (struct net_device *dev );

🎀 ARGUMENTS 🎀

  • dev — pointer to the device structure. like, the whole device. the one we're setting up. she's the blueprint, the moment, the everything. 🫶

🦋 DESCRIPTION 🦋

okay so this is THE main function to setup the HW in a usable state — and the reason it's a whole event is that the DMA engine gets reset and the core registers get configured (we're talking AXI, Checksum features, timers — the whole glam squad ✨). after all that, the DMA is ready to start receiving and transmitting. she's clocked in, she's on shift, she's serving 🔥

return value, and this part is important so listen up: 0 on success, and an appropriate (-)ve integer as defined in errno.h on failure. so like, if it goes wrong, you get a negative little number and you go check errno.h. negative numbers are never the vibe but at least they're documented. 😭

👑 SEE ALSO 👑

sibling functions, the whole family tree, no cap — go say hi to all of them:

like I said. the whole family. iykyk 💜

friendly reminder bestie: this page comes from ./drivers/net/ethernet/stmicro... and it's dated October 2026. that's your source and your version, periodt. 🌈

and that's the page!! memory refreshed, details intact, vibe immaculate. go set up that hardware, queen 👑💖

📦 where this page comes from