"Pradeep Padala" <ppadala@xxxxxxxxxxxxxx> wrote in message news:42EF836A.40007@xxxxxxxxxxxxxxxxx > One way to do this is to use a waitqueue. AFAIK, this is how TUX kernel > Pradeep Padala The waitqueue is definitely the way I'd prefer. So, I used the function do_select() (which is called by sys_select() to do the real work) as a template and wiped the user-mode-file-descriptor-stuff out of it. But now the problem is, that I need a (struct file*) to do the poll(..)-call and a "kernel socket" returned by sock_create() isn't attached to a file (sock->file == NULL). So what now? Thanks in advance Jens -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/