¿IPC inside Kernel? (help)

Ojp · 03-21-2006, 12:12 AM

Hi.
I have a kernel modules an is woring fine. Now, I need to communicate my module with a other process(outside) with a pipe (it's more easy) . Problem: Common IPCs don't work in kernel level (pipes, shared memory, etc.).

Anyone can help me with?, I will acept any class of ideas with a communication outside of kernel. Thanks (and sorry with my worse english).

cppkid · 03-21-2006, 01:04 AM

Just look at IOCTL for communicating with kernel.

cppkid · 03-21-2006, 01:11 AM

Also you copy your data from user to kernel and kernel to user by using these methods.

copy_to_user()
copy_from_user()

But i think you have to code the things in kernel module..

Ojp · 03-21-2006, 02:17 PM

Thanks.
About "Copying data to/from user space", itś sound great, i found some information but i need search for more.

Now, about IOCTL, while i looked for this, i found accidentally the /proc filesystem and the functions create_proc_entry(), etc... it's a good idea use this?, what do you think?

Ojp · 03-21-2006, 02:35 PM

I found more info about /proc file system and Copying data to/from user space and....... wow, this make the things more easy, both have a relationship. Thank you, thank you so much.