Hi all, For kernel 2.6.22.6 : I can see that tyoe of 2nd arg for read function in strucy file_operations is changed is little bit changed from 2.4 kernel. ssize_t (*read) (struct file *, char __user *, size_t, loff_t *); For 2.4 it used to be: ssize_t (*read) (struct file *, char *, size_t, loff_t *); So what does extra __user specify here. If I have to use this function of reading file inside the kernel, then shall I pass kernel buffer to it or user space buffer ? I know that it is VERY BAD idea to read from kernel. But how are we suppposed to do it if at all. Sachin -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
