__stmmac_open(9)

📦 version 7.3.1, in nixpkgs unstable

💅 __stmmac_open(9) — like, the glow-up entry point

okay so bestie, welcome to the Kernel API Manual ✨ — section 9, kernel-space realness, no cap. Today's main character is __stmmac_open, the open entry point of the driver, and honestly? she's iconic for it. 🎀

✨ SYNOPSIS ✨

int __stmmac_open (struct net_device *dev , struct stmmac_dma_conf
*dma_conf );

like, that's the whole signature. two args. she takes two args. periodt. 💅

🫶 ARGUMENTS 🫶

  • dev — pointer to the device structure. that's the struct net_device bestie, the whole vibe of the NIC itself. 🦋
  • dma_conf — structure to take the dma data. yeah. she's holding the DMA data. that's her job. struct stmmac_dma_conf * and everything. ✨

🌸 DESCRIPTION 🌸

so this function is the open entry point of the driver — literally what it says on the tin, no notes. 🔥

and the return value? listen up because this part matters:

Return value: 0 on success, and an appropriate (-)ve integer as defined in the errno.h file on failure. 😭 so if you get a negative number back, that's the universe (and errno.h) telling you something went wrong. negative = not slaying. zero = slay.

👑 SEE ALSO 👑

okay this list is long — she has a whole extended friend group, and we're naming every single one because nobody gets left out in this group chat 💜:

the kernel file first:

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

and the whole squad, in order:

like... eighty-something functions. she knows people. 💀

anyway, that's the page! 🧚 source/version is ./drivers/net/ethernet/stmicro... and it's dated October 2026 — jot it down bestie, iykyk. mwah, go open that driver 💖

📦 where this page comes from