linux-stable/include/linux/can/core.h
Eric Paris 13f18aa05f net: drop capability from protocol definitions
struct can_proto had a capability field which wasn't ever used.  It is
dropped entirely.

struct inet_protosw had a capability field which can be more clearly
expressed in the code by just checking if sock->type = SOCK_RAW.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-05 21:40:17 -08:00

62 lines
1.7 KiB
C

/*
* linux/can/core.h
*
* Protoypes and definitions for CAN protocol modules using the PF_CAN core
*
* Authors: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
* Urs Thuermann <urs.thuermann@volkswagen.de>
* Copyright (c) 2002-2007 Volkswagen Group Electronic Research
* All rights reserved.
*
* Send feedback to <socketcan-users@lists.berlios.de>
*
*/
#ifndef CAN_CORE_H
#define CAN_CORE_H
#include <linux/can.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#define CAN_VERSION "20090105"
/* increment this number each time you change some user-space interface */
#define CAN_ABI_VERSION "8"
#define CAN_VERSION_STRING "rev " CAN_VERSION " abi " CAN_ABI_VERSION
#define DNAME(dev) ((dev) ? (dev)->name : "any")
/**
* struct can_proto - CAN protocol structure
* @type: type argument in socket() syscall, e.g. SOCK_DGRAM.
* @protocol: protocol number in socket() syscall.
* @ops: pointer to struct proto_ops for sock->ops.
* @prot: pointer to struct proto structure.
*/
struct can_proto {
int type;
int protocol;
struct proto_ops *ops;
struct proto *prot;
};
/* function prototypes for the CAN networklayer core (af_can.c) */
extern int can_proto_register(struct can_proto *cp);
extern void can_proto_unregister(struct can_proto *cp);
extern int can_rx_register(struct net_device *dev, canid_t can_id,
canid_t mask,
void (*func)(struct sk_buff *, void *),
void *data, char *ident);
extern void can_rx_unregister(struct net_device *dev, canid_t can_id,
canid_t mask,
void (*func)(struct sk_buff *, void *),
void *data);
extern int can_send(struct sk_buff *skb, int loop);
#endif /* CAN_CORE_H */