September 2009
Beginner
942 pages
85h 34m
English
Content preview from Linux in a Nutshell, 6th EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Name
alsactl
Synopsis
alsactl [options] [command] [card]
Control advanced configuration settings for sound cards using the ALSA (Advanced Linux Sound Architecture) system. Driver settings are written to and loaded from configuration files. The card can be specified as a card number, id, or device. If no card is specified, the configuration for all cards is saved or loaded. The default configuration file is /etc/asound.state.
Commands
- init
Attempt to initialize all sound cards to a default state.
- restore
Load the driver information from the configuration file.
- store
Save the current driver information to the configuration file.
Options
- -d, --debug
Debug mode: increased information output to the console.
- -E var=value, --env var=value
Set an environment variable. Useful for init or to override ALSA_CONFIG_PATH.
- -f file, --file=file
Specify the use of file instead of /etc/asound.state as a configuration file.
- -F, --force
Force the restoration of settings; used with restore. This is the default.
- -g, --ignore
With store and restore, do not display errors and do not set error exit codes.
- -h, --help
Display help message and quit.
- -i file, --initfile=file
Specify the configuration file for init. The default is /usr/share/alsa/init/00main.
- -p, --pedantic
Ignore mismatched control settings; used with restore.
- -r file, --runstate=file
Save restore and init errors to the specified file, appending new errors to the end of the file (unless -R is specified).
- -R, --remove
Remove the runstate file first, before running the restore ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.