snd_soc_info_volsw_sx(9)

📦 version 7.3.1, in nixpkgs unstable

💅 snd_soc_info_volsw_sx(9) 💅

okay bestie, welcome to the Kernel API Manual ✨ this is the glow-up guide to snd_soc_info_volsw_sx, and yes it's a Linux kernel function, and yes you're gonna get it. pull up a chair, grab a boba 🧋

🌸 NAME 🌸

snd_soc_info_volsw_sx — the mixer info callback for SX TLV controls, and honestly? she's iconic for it 👑

✨ SYNOPSIS ✨

int snd_soc_info_volsw_sx (struct snd_kcontrol *kcontrol , struct
       snd_ctl_elem_info *uinfo );

literally just two args and an int coming back at you 🫶

🎀 ARGUMENTS 🎀

  • kcontrol — the mixer control itself. this is the main character of the whole operation 💅
  • uinfo — the control element information. she's carrying all the details, iykyk 🦋

💖 DESCRIPTION 💖

so here's the vibe: this is the callback that provides information about a single mixer control, OR a double mixer control that spans 2 registers of the SX TLV type. two registers, one control, no cap 🔥

now the SX TLV part, because this is the important bit — these controls have a range that represents both positive and negative values either side of zero but without a sign bit 😭 like it's out here living its best unsigned life while still doing signed business. so quirky of her.

and the two numbers you gotta know:

  • min is the minimum register value
  • max is the number of steps

that's it, that's the whole mapping. don't overthink it, bestie 🧚

Returns 0 for success. zero equals slay, periodt ⭐

🦋 SEE ALSO 🦋

the whole friend group, in the kernel file ./sound/soc/soc-ops.c 🫶:

and that's the whole page, bestie!! 🌈 this little masterpiece lives in ./sound/soc under the Kernel API Manual, dated October 2026 — go forth and read your mixer info responsibly 💜🎀💖

📦 where this page comes from