From 71cdd09ce6460d1076506d4e07effddfea9e222d Mon Sep 17 00:00:00 2001 From: Bard Liao Date: Fri, 23 Oct 2026 13:58:29 +0800 Subject: [PATCH] topology2: add function topology description Add function topology description in the README file. Signed-off-by: Bard Liao --- tools/topology/topology2/README.md | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/tools/topology/topology2/README.md b/tools/topology/topology2/README.md index 759867a47d1c..2f4307327c77 100644 --- a/tools/topology/topology2/README.md +++ b/tools/topology/topology2/README.md @@ -383,6 +383,13 @@ IncludeByKey.PLATFORM { "ptl" "platform/intel/ptl.conf" } ``` +### Function topology + +A function topology provides generic and basic audio path for an individual hardware function, such +as headset, amplifier or microphone. The Linux kernel driver uses function information exposed by +ACPI when selecting and loading the corresponding topology. +Function topologies are intended to be reusable across devices that provide the same function. +Please do not add any customized feature in the function topology. ### Registering CMake Targets