genwqe_search_pin(9)

📦 version 7.3.1, in nixpkgs unstable

💅 genwqe_search_pin(9)

okay so bestie, welcome to the Kernel API Manual page for genwqe_search_pin(9) — yes that's a 9 in the parens, we're in kernel land now, no userspace shenanigans 🎀

✨ NAME ✨

genwqe_search_pin — literally just searches for the mapping for a userspace address. that's it. that's the whole vibe check 🦋

🫶 SYNOPSIS 🫶

struct dma_mapping * genwqe_search_pin (struct genwqe_file *cfile ,
unsigned long u_addr , unsigned int size , void **virt_addr );

she takes four things and hands you back a pointer, periodt ✨

🌸 ARGUMENTS 🌸

  • cfile — the descriptor of the opened file. like, the file that's currently open, she knows her 💖
  • u_addr — the user virtual address. the address in user space, hence the u, iykyk 🌈
  • size — the size of the buffer. how big the buffer is, no cap 💅
  • virt_addr — the virtual address that's gonna get updated. she's the one being written to, main character energy 👑

🔥 RETURN 🔥

a pointer to the corresponding mapping 💖 — or just NULL if it's not found 😭 (yes, NULL, capital letters, that's the whole answer)

⭐ SEE ALSO ⭐

the kernel file lives at ./drivers/misc/genwqe/card_dev.c and honestly there's a whole friend group in here, so let's give them their moment 🎀

like, go read all of them, they're all iconic in their own way 🦋

ngl bestie if the search comes back NULL it's not a bug, it's just not found, don't come for her 💀

and that's a wrap!! this page came from ./drivers/misc/genwqe, dated October 2026, and it's genwqe_search_pin(9) until the end of time. slay, go read some kernel source 💜✨

📦 where this page comes from