... number of bytes of data actually placed in the page buffer, just like the read implementation does for other files. Other output values are *eof and *start. eof is a simple flag, but the use of ... scull_get_info(char *buf, char **start, off_t offset, int len, int unused) { int eof = 0; return scull_read_procmem (buf, start, offset, len, &eof, NULL); } struct proc_dir_entry ... is a simple read_procimplementation for the scull device: int scull_read_procmem(char *buf, char **start, off_t offset, int count, int *eof, void *data) { int i, j, len = 0; int limit...