+static long wd_compat_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ int rval = -ENOIOCTLCMD;
+
+ switch (cmd) {
+ /* solaris ioctls are specific to this driver */
+ case WIOCSTART:
+ case WIOCSTOP:
+ case WIOCGSTAT:
+ lock_kernel();
+ rval = wd_ioctl(file->f_dentry->d_inode, file, cmd, arg);
+ unlock_kernel();
+ break;
+ /* everything else is handled by the generic compat layer */
+ default:
+ break;
+ }
+
+ return rval;
+}
+
+static ssize_t wd_write(struct file *file,
+ const char __user *buf,
+ size_t count,
+ loff_t *ppos)