nhlt-dmic-info(1)

nhlt-dmic-info1

Dump microphone array information from acpi nhlt table

Usage

nhlt-dmic-info [-option]

Overview

nhlt-dmic-info dumps microphone array information from ACPI NHLT table in JSON format.

Options

-h | --help

Prints the help information.

-f <file> | --file=<file>

Input file with the binary ACPI NHLT table (default is /sys/firmware/acpi/tables/NHLT).

-o <file> | --output=<file>

JSON output file (default is stdout: -).

Examples

nhlt-dmic-info -f nhlt.bin -o dmic.json

Releases

Unchanged in 2 releases since Debian 13 (Trixie).

  1. 13–Arch

Bugs

None known.

Author

nhlt-dmic-info is by Jaroslav Kysela <[email protected]>. This document is by Jaroslav Kysela <[email protected]>.

From alsa-utils 1.2.16-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.