net/appletalk/dev.c

   1 /*
   2  * Moved here from drivers/net/net_init.c, which is:
   3  *      Written 1993,1994,1995 by Donald Becker.
   4  */
   5
   6 #include <linux/errno.h>
   7 #include <linux/module.h>
   8 #include <linux/netdevice.h>
   9 #include <linux/if_arp.h>
  10 #include <linux/if_ltalk.h>
  11
  12 #ifdef CONFIG_COMPAT_NET_DEV_OPS
  13 static int ltalk_change_mtu(struct net_device *dev, int mtu)
  14 {
  15         return -EINVAL;
  16 }
  17 #endif
  18
  19 static void ltalk_setup(struct net_device *dev)
  20 {
  21         /* Fill in the fields of the device structure with localtalk-generic values. */
  22
  23 #ifdef CONFIG_COMPAT_NET_DEV_OPS
  24         dev->change_mtu         = ltalk_change_mtu;
  25 #endif
  26
  27         dev->type               = ARPHRD_LOCALTLK;
  28         dev->hard_header_len    = LTALK_HLEN;
  29         dev->mtu                = LTALK_MTU;
  30         dev->addr_len           = LTALK_ALEN;
  31         dev->tx_queue_len       = 10;
  32
  33         dev->broadcast[0]       = 0xFF;
  34
  35         dev->flags              = IFF_BROADCAST|IFF_MULTICAST|IFF_NOARP;
  36 }
  37
  38 /**
  39  * alloc_ltalkdev - Allocates and sets up an localtalk device
  40  * @sizeof_priv: Size of additional driver-private structure to be allocated
  41  *      for this localtalk device
  42  *
  43  * Fill in the fields of the device structure with localtalk-generic
  44  * values. Basically does everything except registering the device.
  45  *
  46  * Constructs a new net device, complete with a private data area of
  47  * size @sizeof_priv.  A 32-byte (not bit) alignment is enforced for
  48  * this private data area.
  49  */
  50
  51 struct net_device *alloc_ltalkdev(int sizeof_priv)
  52 {
  53         return alloc_netdev(sizeof_priv, "lt%d", ltalk_setup);
  54 }
  55 EXPORT_SYMBOL(alloc_ltalkdev);