On 11/10/06, Jinesh K J <jineshkj.newsletters@xxxxxxxxx> wrote:
On 10/11/06, Jesper Juhl <jesper.juhl@xxxxxxxxx> wrote: > On 11/10/06, Jinesh K J <jineshkj.newsletters@xxxxxxxxx> wrote: > > Hi all, > > > > I just want to know what are the various userspace <-> kernelspace > > communication mechanisms other than the following: > > > > - Device files > > - Procfs > > - Sysfs > > - connector > > - mmap() > > > system calls I don't want to add any more system call to the kernel. Or you meant something else to say?
You asked for ways that userspace and kernelspace can communicate and syscalls is one such way.
> printk() I'm looking for mechanisms that a user space application can use. How can kernel messages be captured by userspace applications?
userspace can read kernel messages through 'dmesg' or in the system logs written by klogd/syslogd. If you want to know how those apps get the messages, then get hold of the source for dmesg or klogd. -- Jesper Juhl <jesper.juhl@xxxxxxxxx> Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html Plain text mails only, please http://www.expita.com/nomime.html -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
