sdca_asoc_populate_dapm(9)

📦 version 7.3.1, in nixpkgs unstable

💅 sdca_asoc_populate_dapm — like, the whole vibe ✨

okay so bestie, welcome to the Kernel API Manual 🎀 this one's a function page, and it's lowkey the moment where your DAPM widgets and routes actually get their content. let's get into it 🦋

🌸 NAME 🌸

sdca_asoc_populate_dapm — fill in arrays of DAPM widgets and routes ✨

like, that's literally the whole job. it fills in the arrays. iconic.

🫶 SYNOPSIS 🫶

int sdca_asoc_populate_dapm (struct device *dev , struct
sdca_function_data *function , struct snd_soc_dapm_widget *widget ,
struct snd_soc_dapm_route *route );

four things go in, an int comes out. no cap, that's it 💅

🧚 ARGUMENTS 🧚

  • dev — pointer to the device against which allocations will be done. yes, the allocations get charged to this device, so keep it close 💖
  • function — pointer to the Function information. this is the SDCA Function whose DisCo info is about to be turned into widgets and routes 🦋
  • widget — array of DAPM widgets to be populated. it's giving "empty cup, ready to be filled" ☕✨
  • route — array of DAPM routes to be populated. same energy, different array 🎀

💜 DESCRIPTION 💜

so what does it actually do? this function populates arrays of DAPM widgets and routes from the DisCo information for a particular SDCA Function. that's the tea 🔥

and the way you're supposed to use it: typically, snd_soc_asoc_count_component will be used to allocate appropriately sized arrays before calling this function. so like — count first, allocate, then populate. order matters bestie, don't come in here with a tiny array and expect the universe to fix it 😭

🌈 RETURN 🌈

  • returns zero on success 🎉 slay
  • and a negative error code on failure 💀 so like, always check it. fr fr.

👑 SEE ALSO 👑

the kernel file lives at ./sound/soc/sdca/sdca_asoc.c, and it's surrounded by its besties:

go read them, they ate 💅✨

ok that's the whole page bestie, you're now officially educated on DAPM widget & route population 🧚💖

and finally, the cute little sign-off: this page comes to you from ./sound/soc/sdca, dated October 2026 — so mark your calendar, periodt 🌸👑

📦 where this page comes from