On Monday 11 December 2006 13:44, Johannes Held wrote: > Hello, > > > I attached the stripped down part of the code. > > I pen&papered it. It's working. > If all data is written, I return 0 to signal EOF. > > But - and here's the problem - cat or joe don't bother. They start reading > again (but without opening the file again). > I did some printks. And right after returning 0, the function is called > again in an endless loop. > > Now I've written a very simple programm to read form a file until read > says: "O. You reached EOF." > > AND: It works. > I write two lines (~54Bytes) into my file and read the data back. > cat gives me millions of lines.. > and joe "dies" by filling his internal buffer. > > So, what's the problem in this code? > Hi Johannes, You need to update off_ to the file current position. Basically, your static variable len should dissapear and instead all operations with it should be done with off_. Regards, tavi -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
