gpiod_add_lookup_tables(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

🌸 gpiod_add_lookup_tables(9) 🌸

okay so first thing, bestie: this is a page from the Kernel API Manual, section 9 β€” the kernel dev corner of the manpage universe. and it's about one very specific little function, so let's get into it πŸ’…


✨ NAME ✨

gpiod_add_lookup_tables β€” register GPIO device consumers πŸŽ€

like, it's the function that says "hey, these consumers exist, put 'em on the list."


πŸ¦‹ SYNOPSIS πŸ¦‹

void gpiod_add_lookup_tables (struct gpiod_lookup_table **tables ,
size_t n );

that's the whole signature, no cap. returns void, so it's giving "I do the thing and I don't report back," and honestly? iconic.


🌈 ARGUMENTS 🌈

  • tables β€” the list of tables of consumers to register 🫢 like, an actual array of pointers to struct gpiod_lookup_table, and every table in it is a batch of consumers you want on the books.
  • n β€” the number of tables in that list, a size_t. literally just how many of them there are. the count. the vibe check for the array length πŸ’€
so yes β€” tables tells you what, n tells you how many. don't mix 'em up bestie 😭

πŸ‘‘ SEE ALSO πŸ‘‘

the whole GPIo extended universe, fr fr. every single one of these is related and every single one is listed here exactly as-is:

and the source of truth lives in the kernel file ./drivers/gpio/gpiolib.c β€” that's where the real ones hang out 🧚

pro tip (not from me, from the page itself): if you're reading this in man, the SEE ALSO refs are clickable β€” go click one, it's giving ✨ main character energy ✨

that's the whole page, bestie. short, sweet, and extremely specific πŸ’–

sign-off time 🌟 β€” this one's filed under ./drivers/gpio, dated October 2026, and it's gpiod_add_lookup_tables(9) till the end. slay, go register your consumers πŸŽ€πŸ’…

πŸ“¦ where this page comes from