Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Test Your Knowledge in Computers #106
Difficulty: Easy
A kernel is at the heart of the Linux OS; and this kernel acts as an interface between the user and underlying hardware.
True or False?
Linux & Unix Commands - Search Man Pages

devclass_find(9) [bsd man page]

DEVCLASS_FIND(9)					   BSD Kernel Developer's Manual					  DEVCLASS_FIND(9)

NAME
devclass_find -- search for a devclass SYNOPSIS
#include <sys/param.h> #include <sys/bus.h> devclass_t devclass_find(const char *classname); DESCRIPTION
Search for the devclass with the specified name. RETURN VALUES
If the devclass exists, it is returned, otherwise NULL is returned. SEE ALSO
devclass(9) AUTHORS
This manual page was written by Doug Rabson. BSD
June 16, 1998 BSD

Check Out this Related Man Page

DEVCLASS(9)						   BSD Kernel Developer's Manual					       DEVCLASS(9)

NAME
devclass -- object representing a class of devices SYNOPSIS
typedef struct devclass *devclass_t; DESCRIPTION
The devclass object has two main functions in the system. The first is to manage the allocation of unit numbers for device instances and the second is to hold the list of device drivers for a particular bus type. Each devclass has a name and there cannot be two devclasses with the same name. This ensures that unique unit numbers are allocated to device instances. Beware that this means devclass must be the same for different bus attachments of the same device driver. SEE ALSO
devclass_add_driver(9), devclass_delete_driver(9), devclass_find(9), devclass_find_driver(9), devclass_get_device(9), devclass_get_devices(9), devclass_get_maxunit(9), devclass_get_name(9), devclass_get_softc(9), device(9), driver(9) AUTHORS
This manual page was written by Doug Rabson. BSD
June 16, 1998 BSD

10 More Discussions You Might Find Interesting

1. OS X (Apple)

Mac OS X: Based on UNIX - Solid As a Rock

See this threads: Page Not Found - Apple Open Source - Apple (0 Replies)
Discussion started by: Neo
0 Replies

2. UNIX for Beginners Questions & Answers

Simple rules of the UNIX.COM forums:

RULES OF THE UNIX AND LINUX FORUMS For the latest version of the community rules (the official community rules page), please visit here. No flames, shouting (all caps), sarcasm, bullying, profanity or arrogant posts. No negative comments about others or impolite remarks. Be patient. No... (1 Reply)
Discussion started by: Neo
1 Replies

3. Shell Programming and Scripting

Scripts without shebang

I see lot of ad-hoc shell scripts in our servers which don't have a shebang at the beginning . Does this mean that it will run on any shell ? Is it a good practice to create scripts (even ad-hoc ones) without shebang ? (16 Replies)
Discussion started by: kraljic
16 Replies

4. 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

5. UNIX for Beginners Questions & Answers

Memory leak with awk on MacOs

Dear all, I use awk quite a bit for data wrangling ... today I find weird behavior that I cannot wrap my head around. if I execute the following command (simplified to illustrate the behavior ... nothing to do with the real command) bash-3.2$ awk... (3 Replies)
Discussion started by: comm|getline
3 Replies

6. Shell Programming and Scripting

Mail/mailx ignores newline formatting Problem.

I have a file hello.txt which i wish to send as a email body (not attachment). cat -ev hello.txt 1$ 2$ 3$ I use the following command to send the hello.txt as the email body. mailx -s "Alert" myteam@mycomp.com<hello.txt However, the email received has this in the email body 123... (2 Replies)
Discussion started by: mohtashims
2 Replies

7. Linux

LM 19.1 from pendrive

I've "installed" LM 19.1 to a PNY 16Gb(2.0) pendrive. I have a few issues that I'd like to resolve. First and foremost, the O.S. experiences "lagging" issues and to a lesser degree, freezing. Example: Complete "boot-up" (from start to complete "home" page) can take upwards of 7 mins. Then when... (10 Replies)
Discussion started by: 69Rixter
10 Replies

8. UNIX for Beginners Questions & Answers

UNIX Environment Setup - (Just starting!)

Morning All So, I am starting looking into the world of UNIX for a new job (luckily not my primary function!) and I am looking to get stared. Like anything I seem to learn best by trying things out first in an environment but I have a key question: Currently I use Oracle VirtualBox, can... (8 Replies)
Discussion started by: GophusMeau
8 Replies

9. Solaris

Is it safe to install x86 Solaris 10 U6 after installed-Linux-and-FreeBSD?

I've installed Slack 14.2 on /dev/sda1 (/dev/sda2 is swap) and FreeBSD 12 on /dev/sda3 and lilo is the boot manager. FreeBSD slices are as follows; / on /dev/ada0S3a, swap on /dev/ada0s3e, /var on /dev/ada0s3b, /tmp on /dev/ada0s3d and /usr on /dev/ada0s3f. I hesitate to install Solaris 10... (2 Replies)
Discussion started by: vectrum
2 Replies

10. UNIX for Advanced & Expert Users

[Tip] How to display the number of logged-in users

In a professional environment with traditional application you often want (or are asked) to report the users. Traditionally there is the who command who | awk '{print $1}'telnetd or sshd register the users in the utmp file, to be shown with who, w, users, finger, pinky, ... In addition they... (1 Reply)
Discussion started by: MadeInGermany
1 Replies

Featured Tech Videos