what is major number and what is minor number..?
Answers were Sorted based on User's Feedback
Answer / t.k.chaitanya
major number maps to the device drivers(ex: printer , cd
rom,screen)
minor number maps to the specific device
| Is This Answer Correct ? | 11 Yes | 2 No |
Answer / daves
The major number identifies the device driver that owns the
device. The major number is mapped to its driver in the
/etc/name_to_major file.
The minor number identifies which driver device instance is
being managed. Each driver has its own numbering convention.
For example, disks are numbered as ((instance # * 8) + slice
#). Others may be numbered sequentially or as the driver
author felt like it.
You can see exactly which driver owns a device in the
/etc/path_to_inst file or sysdef -dD command, among other
places.
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / vijay
The driver knows the minor number of a particular device..
For example, the major number of pts is 136..
Assume, we have three pts.. So, the major and minor number
will be as follows..
Device Major number Minor number
pts/0 -> 136 0
pts/1 -> 136 1
pts/2 -> 136 2
Whereas, the Kernel identfies the device using the major
number..
| Is This Answer Correct ? | 2 Yes | 2 No |
Difference between Console and terminal
what is mean by netfmd in sun cluster what is the use of netfmd and what is the relation between ccd and netfmd?
How to detect a newly added device if you are not able to detect the device using devfsadm?
how can u crete snapshot
when new Luns are added to server ,how to brought them under veritas control?
how to see the processor information
In TOP command, can you please explain what is the three numbers reported as part of the load average output "load average: 11.57, 9.84, 8.26"
what are soft links and hard links, and differentiate them.
what is the use of NIS how can u configure
how to configure default router..?
what r d crontab fields?
3 Answers emc2, JK Technosoft,
1.how to see global zone name residing in non global zone?