Is Kernel module is the same as a device driver? Post: 302519629

4 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Kernel and Device Driver Programming

I am looking for a guide on how to program for either the Linux or FreeBSD (includes 4.4BSD, NetBSD or OpenBSD) kernel. I would prefer to learn how to write device drivers, but anything would help. If you know, please email me at *removed* or leave a post here Regards, Farhan

2. Solaris

SUNWglmr -- rasctrl environment monitoring driver for i2c or SCSI device driver ?

I've been researching minimizeing Solaris 8 and found that on the web page http://www.sun.com/bigadmin/content/packagelist/s8u7PkgList/p2.html the package SUNWglmr is listed as "rasctrl environment monitoring driver for i2c, (Root) (32-bit)" while in the document "Solaris 8 minimize-updt1.pdf"...

3. Linux

Linux Device Driver: avoid mem copy from/to user/kernel space

I recently started working with Linux and wrote my first device driver for a hardware chip controlled by a host CPU running Linux 2.6.x kernel. 1. The user space process makes an IOCTL call with pointer to a user memory buffer. 2. The kernel device driver in the big switch-case of IOCTL,...

4. UNIX for Advanced & Expert Users

Get pointer for existing device class (struct class) in Linux kernel module

Hi all! I am trying to register a device in an existing device class, but I am having trouble getting the pointer to an existing class. I can create a class in a module, get the pointer to it and then use it to register the device with: *cl = class_create(THIS_MODULE, className);...

LEARN ABOUT SUNOS

device_maps

device_maps(4)							   File Formats 						    device_maps(4)

NAME

       device_maps - device_maps file

SYNOPSIS

       /etc/security/device_maps

DESCRIPTION

       The  device_maps file contains access control information about each physical device. Each device is represented by a one line entry of the
       form:

       device-name : device-type : device-list :

       where

       device-name	       This is an arbitrary ASCII string naming the physical device. This field contains no embedded white space  or  non-
			       printable characters.

       device-type	       This is an arbitrary ASCII string naming the generic device type. This field identifies and groups together devices
			       of like type. This field contains no embedded white space or non-printable characters.

       device-list	       This is a list of the device special files associated with the physical device. This field  contains  valid  device
			       special file path names separated by white space.

       The device_maps file is an ASCII file that resides in the /etc/security directory.

       Lines in device_maps can end with a `' to continue an entry on the next line.

       Comments may also be included. A `#' makes a comment of all further text until the next NEWLINE not immediately preceded by a `'.

       Leading and trailing blanks are allowed in any of the fields.

       The device_maps file must be created by the system administrator before device allocation is enabled.

       This file is owned by root, with a group of sys, and a mode of 0644.

EXAMPLES

       Example 1: A sample device_maps file

       # scsi tape
       st1:
       rmt:
       /dev/rst21 /dev/nrst21 /dev/rst5 /dev/nrst5 /dev/rst13 
       /dev/nrst13 /dev/rst29 /dev/nrst29 /dev/rmt/1l /dev/rmt/1m 
       /dev/rmt/1 /dev/rmt/1h /dev/rmt/1u /dev/rmt/1ln /dev/rmt/1mn 
       /dev/rmt/1n /dev/rmt/1hn /dev/rmt/1un /dev/rmt/1b /dev/rmt/1bn:

FILES

       /etc/security/device_maps

SEE ALSO

       allocate(1), bsmconv(1M), deallocate(1), dminfo(1M), list_devices(1)

NOTES

       The  functionality  described  in  this man page is available only if the Basic Security Module (BSM) has been enabled. See bsmconv(1M) for
       more information.

SunOS 5.10							    16 Jan 2001 						    device_maps(4)