Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Test Your Knowledge in Computers #559
Difficulty: Easy
A runtime error is an error that occurs while a program is being executed.
True or False?
Linux & Unix Commands - Search Man Pages

snd_component_add(9) [centos man page]

SND_COMPONENT_ADD(9)					  Management of Cards and Device				      SND_COMPONENT_ADD(9)

NAME
snd_component_add - add a component string SYNOPSIS
int snd_component_add(struct snd_card * card, const char * component); ARGUMENTS
card soundcard structure component the component id string DESCRIPTION
This function adds the component id string to the supported list. The component can be referred from the alsa-lib. RETURN
Zero otherwise a negative error code. COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 SND_COMPONENT_ADD(9)

Check Out this Related Man Page

pm_busy_component(9F)					   Kernel Functions for Drivers 				     pm_busy_component(9F)

NAME
pm_busy_component, pm_idle_component - Control device component availability for Power Management SYNOPSIS
#include <sys/ddi.h> #include <sys/sunddi.h> int pm_busy_component(dev_info_t *dip, int component); int pm_idle_component(dev_info_t *dip, int component); INTERFACE LEVEL
Solaris DDI specific (Solaris DDI) PARAMETERS
pm_busy_component() dip Pointer to the device's dev_info structure. component The number of the component to be power-managed. pm_idle_component() dip Pointer to the device's dev_info structure. component The number of the component to be power-managed. DESCRIPTION
The pm_busy_component() function sets component of dip to be busy. Calls to pm_busy_component() are stacked, requiring a corresponding num- ber of calls to pm_idle_component() to make the component idle again. When a device is busy it will not be power-managed by the system. The pm_idle_component() function marks component idle, recording the time that component went idle. This function must be called once for each call to pm_busy_component(). A component which is idle is available to be power-managed by the system. The pm_idle_component() func- tion has no effect if the component is already idle, except to update the system's notion of when the device went idle. Note - If these functions are called as a result of entry into the driver's attach(9E), detach(9E) or power(9E) entry point, these func- tions must be called from the same thread which entered attach(9E), detach(9E) or power(9E). RETURN VALUES
The pm_busy_component() and pm_idle_component() functions return: DDI_SUCCESS Successfully set the indicated component busy or idle. DDI_FAILURE Invalid component number component or the device has no components. CONTEXT
These functions can be called from user or kernel context. These functions may also be called from interrupt context, providing they are not the first Power Management function called by the driver. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface stability |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
power.conf(4), pm(7D), attach(9E), detach(9E), power(9E), pm_raise_power(9F), pm(9P), pm-components(9P) Writing Device Drivers SunOS 5.10 21 July 2004 pm_busy_component(9F)

15 More Discussions You Might Find Interesting

1. Fedora

Is UNIX an open source OS ?

Hi everyone, I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX. Ok onto business, my questions are-: Was/Is UNIX ever an open source operating system ? If UNIX was... (21 Replies)
Discussion started by: sreyan32
21 Replies

2. UNIX for Beginners Questions & Answers

Weird 'find' results

Hello and thanks in advance for any help anyone can offer me I'm trying to learn the find command and thought I was understanding it... Apparently I was wrong. I was doing compound searches and I started getting weird results with the -size test. I was trying to do a search on a 1G file owned by... (14 Replies)
Discussion started by: bodisha
14 Replies

3. UNIX for Beginners Questions & Answers

Set hard block limit for user using quota

hi all, i have installed quota on my centos 7 machine and its what im after (setting size limit on users, so they cant fill the hard drive) i want to now make this part of my create user script for my sftp server so i want to do a echo and a read command so i capture the limit they enter... (0 Replies)
Discussion started by: robertkwild
0 Replies

4. UNIX for Beginners Questions & Answers

Best performance UNIX just for HOST Virtualization?

Hi everybody, Which Unix base OS have best performance for HOST virtualization? I tested SmartOS but it needs another OS to connect remotely! Thanks in advance. (11 Replies)
Discussion started by: mbzadegan
11 Replies

5. UNIX for Beginners Questions & Answers

How to increment version inside a file?

Hi All, I need to write a shell script which opens a file and increments the version(text) within the file every time the script runs. For example: $ cat docker_file.yml version: '3.1' services: ui: image: repo-srv.dev.io:5000/facebook/ui:0.0.2-QA1 $ So, I would like... (6 Replies)
Discussion started by: akshayupadhayay
6 Replies

6. Programming

DB2 convert digits to binary format

Dear Team We use DB2 v10.5 and using DBArtisan tool Can someone please guide how to convert digits to binary numbers using db2 feature. Ex> for number 9 , binary should be 1001 ( 8+1) Any help appreciated. Thanks (2 Replies)
Discussion started by: Perlbaby
2 Replies

7. UNIX for Advanced & Expert Users

Tar Command

hi folks, how to using tar with exclude directory and compress it using tar.Z i only know how to exclude dir only with this command below: tar -cvf /varios/restore/test.tar -X excludefile.txt /jfma/test1/ how to compress it using 1 command? Thanx Please use CODE tags as... (6 Replies)
Discussion started by: only
6 Replies

8. UNIX for Advanced & Expert Users

CentOS7 restoring file capabilities

Quite an obscure question I think. We have a rebuild process for remote sites that allows us to PXE rebuild a till (actually a PC with a touch screen and various fancy bits) running CentOS. The current CentOS5 tills work just fine with a tar image restore and some personalisation. Sadly,... (4 Replies)
Discussion started by: rbatte1
4 Replies

9. Docker

Docker learning Phase-I

Hello All, I had recently learnt a bit of Docker(which provides containerization process). Here are some of my learning points from it. Let us start first with very basic question: What is Docker: Docker is a platform for sysadmins and developers to DEPLOY, DEVELOP and RUN applications ... (7 Replies)
Discussion started by: RavinderSingh13
7 Replies

10. UNIX for Advanced & Expert Users

Shopt -s histappend

What is the point of this? Whenever I close my shell it appends to the history file without adding this. I have never seen it overwrite my history file. # When the shell exits, append to the history file instead of overwriting it shopt -s histappend (3 Replies)
Discussion started by: cokedude
3 Replies

11. UNIX for Beginners Questions & Answers

Unsure why access time on a directory change isn't changing

Hello... And thanks in advance for any help anyone can offer me I was trying to work out the differences between displaying modify, access, and change times with the 'ls' command. Everything seems in order when I look at files, but the access time on a directory doesn't seem to change when I... (4 Replies)
Discussion started by: bodisha
4 Replies

12. UNIX for Beginners Questions & Answers

CentOS 6 ran out of space, need to reclaim it

Hello everyone, I am having an issue here with CentOS release 6.6 (Final) that shows all of the space used up, but I can't tell where the space went. Seemingly I am using up 100%, according to df -h Filesystem Size Used Avail Use% Mounted on... (27 Replies)
Discussion started by: DannyBoyCentOS
27 Replies

13. Shell Programming and Scripting

Controlling user input

I'm trying to use a bash script for a psych experiment that involves listening to sound files and responding. If I have something like the code below, how can I make sure that a key press is assigned to RESPONSE only after the second echo statement? for i in 1 2 3; do echo "Ready?" sleep 2 ... (10 Replies)
Discussion started by: darwin_886
10 Replies

14. Shell Programming and Scripting

[TIP] Processing YAML files with yq

After the success of the jq - tool for parsing and manipulating JSON-Data someone wrote a tool called yq, which aims to be the same for YAML, what jq is for JSON. Seems to work fine. I'll definitely give it a chance in future. Example YAML-File: --- !ruby/object:Puppet::Node::Facts ... (1 Reply)
Discussion started by: stomp
1 Replies

15. What is on Your Mind?

Please Welcome Dave Munro to the Moderator Team!

Dear All, I am very pleased to announce that Dave Munro (gull04) is joining the Moderation Team, after being a very valuable member of UNIX.com for 15+ years. Dave is an IT Consultant with 30 years of experience this year, has worked in many of the industry vertical market segments and has... (6 Replies)
Discussion started by: Neo
6 Replies

Featured Tech Videos