patch-2.4.19 linux-2.4.19/drivers/char/raw.c

• Lines: 42
• Date: Fri Aug 2 17:39:43 2002
• Orig file: linux-2.4.18/drivers/char/raw.c
• Orig date: Sat Sep 22 20:35:43 2001

diff -urN linux-2.4.18/drivers/char/raw.c linux-2.4.19/drivers/char/raw.c
@@ -34,6 +34,7 @@
 int	raw_open(struct inode *, struct file *);
 int	raw_release(struct inode *, struct file *);
 int	raw_ctl_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
+int	raw_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
 
 
 static struct file_operations raw_fops = {
@@ -41,6 +42,7 @@
 	write:		raw_write,
 	open:		raw_open,
 	release:	raw_release,
+	ioctl:		raw_ioctl,
 };
 
 static struct file_operations raw_ctl_fops = {
@@ -160,6 +162,25 @@
 
 
 
+/* Forward ioctls to the underlying block device. */ 
+int raw_ioctl(struct inode *inode, 
+		  struct file *flip,
+		  unsigned int command, 
+		  unsigned long arg)
+{
+	int minor = minor(inode->i_rdev), err; 
+	struct block_device *b; 
+	if (minor < 1 && minor > 255)
+		return -ENODEV;
+
+	b = raw_devices[minor].binding;
+	err = -EINVAL; 
+	if (b && b->bd_inode && b->bd_op && b->bd_op->ioctl) { 
+		err = b->bd_op->ioctl(b->bd_inode, NULL, command, arg); 
+	} 
+	return err;
+} 
+
 /*
  * Deal with ioctls against the raw-device control interface, to bind
  * and unbind other raw devices.