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can: netlink support for bus-error reporting and counters

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This patch makes the bus-error reporting configurable and allows to
retrieve the CAN TX and RX bus error counters via netlink interface.
I have added support for the SJA1000. The TX and RX bus error counters
are also copied to the data fields 6..7 of error messages when state
changes are reported.

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Wolfgang Grandegger 2010-02-22 22:21:17 +00:00 • committed by David S. Miller
parent 78ca90ea99
commit 52c793f240
4 changed files with 44 additions and 7 deletions
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2
include/linux/can/dev.h
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@ -47,6 +47,8 @@ struct can_priv {
int (*do_set_mode)(struct net_device *dev, enum can_mode mode);
int (*do_get_state)(const struct net_device *dev,
enum can_state *state);
int (*do_get_berr_counter)(const struct net_device *dev,
struct can_berr_counter *bec);
unsigned int echo_skb_max;
struct sk_buff **echo_skb;