mirror of
https://github.com/alsa-project/alsa-utils
synced 2024-11-08 17:35:42 +01:00
ee3965f6fa
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>
37 lines
815 B
Groff
37 lines
815 B
Groff
.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>.
|