Re: [mpls-linux-general] writting into proc file

[Abhijit G. <gab...@ee...>]

Look for documentation of sysctl interface. It essentially does that..

But better use netlink if u want to pass data between userspace n
kernelspace. As far as i know sysctl interface has few limitations.

-abhijit

vvk...@hs... wrote :

>
>
>Hi  Folks !
>     Can anybody explain how will be the  mechanism to write into file
>   in the /proc filesystem from kernel space ...........
>
> In the 2.4.x linux kernel , for less than   PAGE_SIZE data transfer ,
>i am using the following mechanism to register the entry in the  /PROC
>filesytem...
>
>    struct proc_dir_entry *entry=create_proc_entry("xyz", S_IRUGO | S_IWUGO ,
>NULL );
>
>    if   (  entry )
>    {
>           entry->read_proc = xyz_read_proc;
>           entry->write_proc = xyz_write_proc;
>     }
>
>are these mean to say that accessing this file from userspace........or kernel
>space..........
>
>Is this mean to say that , when user invokes  "read" or "write" system directly
>or indirectly with ANSI library
>
>will be available for user to access this file ?
>
>I want to write the content into a file ..i.e in /proc  ....  from  kernel
>space.........
>
>What will be various options to acheive this ?
>
>can anybody send a small template for this , will be greatly
>appreciated..........
>
>Thanks in advance.........
>
>With  thanx and regards,
>Ramakrishna kvv.