bdisp_hw_alloc_filters(9)

📦 version 7.3.1, in nixpkgs unstable

🎀 bdisp_hw_alloc_filters(9) 🎀

okay so this is a page from the Kernel API Manual, and bestie, it is short. Like, suspiciously short. But we're gonna treat it with the respect it deserves anyway because every function is somebody's main character. 💅

✨ NAME ✨

bdisp_hw_alloc_filters —

and that's it. That's the whole description. The original page literally leaves the dash hanging there with nothing after it, no cap. So we are not gonna invent a personality for it. The vibe is mysterious. The vibe is "iykyk." 🫶

🌸 SYNOPSIS 🌸

int bdisp_hw_alloc_filters (struct device *dev );

that's the whole signature, periodt. returns an int, takes one argument. clean. iconic. no notes. ⭐

🦋 ARGUMENTS 🦋

  • dev — the device. that's the entire description. just "device." she's a woman of few words and honestly? respect. 💜

🔥 DESCRIPTION 🔥

so what does it do? it allocates dma memory for filters. that's it, that's the function. allocate. dma memory. for filters. three little facts and honestly they ate. 💅✨

ngl this is the kind of manpage that lowkey expects you to already know what a filter is in this driver's world — this page is not gonna explain it to you, bestie. it's giving "if you have to ask, you're not the target audience." 😭

🌈 RETURN 🌈

  • 0 on success — that's the only documented return value, so don't come for me asking about the failure case. the page says 0 on success and nothing else, fr fr. 🍓

👑 SEE ALSO 👑

okay this is where the page finally gets chatty — a whole squad of related functions, plus the source file itself:

like look at that friend group. alloc_filters and free_filters are literally right there next to each other — the way that the alloc and the free are both in the list is highkey a serve. 🦋💖

💀 quick reminder that bdisp_hw_free_filters(9) exists, so if you're the one calling the alloc, be a responsible main character and clean up after yourself. (i'm not adding advice the page didn't have — i'm just saying the free function is literally listed up there. do with that what you will. 🙈)

💌 sign-off 💌

this little gem comes from the source file ./drivers/media/platform/st/st... (yes, that's how it's truncated on the page, we're keeping it exactly like that, character for character 🫶) and it's dated October 2026. love that for us. future manpage. time traveler energy. ⏳✨

k byeeee, go allocate some dma memory for filters, ily 💜🎀

📦 where this page comes from