On Wed, 23 Mar 2005, linux lover wrote:
Hello linux-os,
--- linux-os <[email protected]> wrote:
On Wed, 23 Mar 2005, linux lover wrote:
Hello all,
I have one linked list data structure added
to
a file in kernel source code which has some kernel
info. I want to acess that linked list structure
from
user space. Is that possible??
Also how to add own system call usable at
user
level from kernel module??
regards,
linux_lover.
Many people will tell you to use the /proc
file-system.
I suggest you make a simple "character" driver and
access
your kernel structure using ioctl() or mmap().
How can i access that linked list structure in
kernel at user space say if i write character driver
as /dev/readll then how to link that structure to
device driver
?
Gawd.... `man ioctl`. Execute that. Learn. Write code
that handles such a call in your module.
`man mmap`. execute that. Learn. Write code that
handles memory-mapping in your module.
You don't add your own system call __ever__, even if
you
are a long-time kernel developer. The current API
already
has lots of standard interface capabilities.
Thinking, even
for an instant, that you need more means that you
don't
understand Unix/Linux.
Cheers,
Dick Johnson
Penguin : Linux version 2.6.11 on an i686 machine
(5537.79 BogoMips).
Notice : All mail here is now cached for review by
Dictator Bush.
98.36% of all statistics are
fiction.
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Cheers,
Dick Johnson
Penguin : Linux version 2.6.11 on an i686 machine (5537.79 BogoMips).
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