How to see manual pages for printk?
 

i can get only for man fork , etc........

why manual pages are not there for kernel functions
man register_chrdev
man wake_up_interruptible
man interruptible_sleep_on

i unable to get saying no maunual pages

but i can able to use in code.

Good question.

I don't see any repository that offers this man page on CentOS5 except one that offers French man pages (go figure).

I did however find the section 9 man pages including register_chrdev are online at:
http://www.linuxsavvy.com/resources/linux/man/man9/

The linux manual pages are not typically installed by default. Not sure what the package will be called in Fedora; in Debian based distros it will be something like "linux-manual-2.6.X".

An interface like fork is a little different, because it is a standard POSIX call.

Yes but these may not be in the standard man pages package. They aren't on CentOS5.

Correct, because they are section 9 pages.

I think the rpm package may be called kernel-doc.

Checked that earlier and it has docs but no man pages.

You also missed the point in my prior post - the only package in the repositories that contains a man page for what the OP asked about is a French man page set. In CentOS5/RHEL5 one can find this information using the "yum provides ...." syntax. That doesn't mean someone somewhere may not have created an RPM bundle - just that it isn't in the standard repositories.