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 static int ltalk_change_mtu(struct net_device *dev, int mtu)
  13 {
  14         return -EINVAL;
  15 }
  16
  17 static int ltalk_mac_addr(struct net_device *dev, void *addr)
  18 {
  19         return -EINVAL;
  20 }
  21
  22 static void ltalk_setup(struct net_device *dev)
  23 {
  24         /* Fill in the fields of the device structure with localtalk-generic values. */
  25
  26         dev->change_mtu         = ltalk_change_mtu;
  27         dev->set_mac_address    = ltalk_mac_addr;
  28
  29         dev->type               = ARPHRD_LOCALTLK;
  30         dev->hard_header_len    = LTALK_HLEN;
  31         dev->mtu                = LTALK_MTU;
  32         dev->addr_len           = LTALK_ALEN;
  33         dev->tx_queue_len       = 10;
  34
  35         dev->broadcast[0]       = 0xFF;
  36
  37         dev->flags              = IFF_BROADCAST|IFF_MULTICAST|IFF_NOARP;
  38 }
  39
  40 /**
  41  * alloc_ltalkdev - Allocates and sets up an localtalk device
  42  * @sizeof_priv: Size of additional driver-private structure to be allocated
  43  *      for this localtalk device
  44  *
  45  * Fill in the fields of the device structure with localtalk-generic
  46  * values. Basically does everything except registering the device.
  47  *
  48  * Constructs a new net device, complete with a private data area of
  49  * size @sizeof_priv.  A 32-byte (not bit) alignment is enforced for
  50  * this private data area.
  51  */
  52
  53 struct net_device *alloc_ltalkdev(int sizeof_priv)
  54 {
  55         return alloc_netdev(sizeof_priv, "lt%d", ltalk_setup);
  56 }
  57 EXPORT_SYMBOL(alloc_ltalkdev);