alsa-utils/nhlt/nhlt-dmic-info.1
Jaroslav Kysela ee3965f6fa nhlt: add nhlt-dmic-info utility
The microphone arrays for Intel platforms are described in the
ACPI NHLT table. This table is available in sysfs. Parse this
information and use a more common format (json) for output. This
information is usable for the further DSP processing.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2023-05-16 15:54:05 +02:00

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.TH NHLT-DMIC-INFO 1 "16 May 2023"
.SH NAME
nhlt-dmic-info \- dump microphone array information from ACPI NHLT table
.SH SYNOPSIS
\fBnhlt-dmic-info\fP [\fI\-option\fP]
.SH DESCRIPTION
\fB\fBnhlt-dmic-info\fP\fP dumps microphone array information from ACPI NHLT
table in JSON format.
.SH OPTIONS
.TP
\fI\-h\fP | \fI\-\-help\fP
Prints the help information.
.TP
\fI\-f <file>\fP | \fI\-\-file=<file>\fP
Input file with the binary ACPI NHLT table (default is \fB/sys/firmware/acpi/tables/NHLT\fR).
.TP
\fI\-o <file>\fP | \fI\-\-output=<file>\fP
JSON output file (default is stdout: \fB\-\fR).
.SH EXAMPLES
.nf
\fBnhlt-dmic-info \-f nhlt.bin \-o dmic.json\fR
.ne
.SH BUGS
None known.
.SH AUTHOR
\fBnhlt-dmic-info\fP is by Jaroslav Kysela <perex@perex.cz>.
This document is by Jaroslav Kysela <perex@perex.cz>.