xilinx_dpdm...an_resources(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 xilinx_dpdma_alloc_chan_resources (9) — Kernel API Manual ✨

okay bestie, welcome to the Kernel API Manual 💅 this one's a lil function hanging out in the Xilinx DPDMA corner of the kernel, and honestly? she's a whole vibe. let's get into it 🫶

💖 NAME 💖

xilinx_dpdma_alloc_chan_resources — bestie, this is the one that allocates resources for the channel. that's the whole job. she's a giver. 👑

✨ SYNOPSIS ✨

int xilinx_dpdma_alloc_chan_resources (struct dma_chan *dchan );

like… that's it. that's the signature. short, sweet, iconic 🎀

🦋 ARGUMENTS 🦋

  • dchan — the DMA channel. that's your girl. you hand her over and she gets her resources sorted 💅

🌈 DESCRIPTION 🌈

so what does she actually do? she allocates a descriptor pool for the channel. that's the tea ☕️ like, not me showing up with a whole pool of descriptors just for your channel, lowkey main character energy fr fr 🧚

⭐ RETURN ⭐

  • 0 on success — slay, everything worked 💖
  • -ENOMEM if she failed to allocate a pool — which, ngl, is the sad path 😭 memory said no

🔥 SEE ALSO 🔥

okay this is the part where the whole friend group shows up, so let's do a proper roll call 📋✨

the kernel file lives at ./drivers/dma/xilinx/xilinx_dpdma.c — that's home base 🏠

and then the extended fam:

like, that's a lot of relatives but every single one of them ate 💀🔥 go read all of them, iykyk 💜

and that's the whole page, bestie! sign-off time: this lil masterpiece comes from ./drivers/dma/xilinx and it's dated October 2026 🗓️✨ mwah, go allocate some descriptors responsibly 🎀🫶💖

📦 where this page comes from