snd_pcm_limit_isa_dma_size(9)

📦 version 7.3.1, in nixpkgs unstable

💖 snd_pcm_limit_isa_dma_size — the Kernel API Manual ✨

okay so bestie, we're deep in the kernel sound subsystem rn (this is the snd_pcm_limit_isa_dma_size(9) page, iykyk) and honestly? this little function is giving tiny-but-iconic. no cap, it's a whole one-liner of a synopsis but it does exactly what it says on the tin 🎀

✨ NAME ✨

snd_pcm_limit_isa_dma_size — Get the max size fitting with ISA DMA transfer 💅

🦋 SYNOPSIS 🦋

void snd_pcm_limit_isa_dma_size (int dma , size_t *max );

that's it. that's the whole signature. void return, two params, we move 🫶

🌸 ARGUMENTS 🌸

  • dma — the DMA number, fr fr. it's an int, it's the DMA you're asking about ⭐
  • max — pointer to store the max size 💖 (yes it's a size_t *, so it's writing the answer back out through the pointer — main character energy, it doesn't return anything, it just fills your variable)

👑 SEE ALSO 👑

bestie the cross-reference list is long and honestly it ate. all of these live in the kernel file ./include/sound/pcm.h 🧚

like I said. it ate. go read them all, I'll wait 💜

okay that's the whole page bestie, slay 🎀 it comes from the source ./include/sound and it's dated October 2026 — so yes, it's from the future, iconic behaviour, periodt 💅✨

📦 where this page comes from