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can/netlink: add CAN_CTRLMODE_ONE_SHOT 

This patch adds the flag CAN_CTRLMODE_ONE_SHOT. It is used as mask
or flag in the "struct can_ctrlmode".

It allows userspace via netlink to set a CAN controller into the special
"one-shot" mode. In this mode, if supported by the CAN controller, it
tries only once to deliver a CAN frame and aborts it if an error
(e.g.: arbitration lost) happens.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Marc Kleine-Budde 2009-12-23 01:27:48 +00:00 committed by David S. Miller
parent 20dd3850bc
commit c1c5523dd1
1 changed files with 1 additions and 0 deletions
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1
include/linux/can/netlink.h
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@ -80,6 +80,7 @@ struct can_ctrlmode {
#define CAN_CTRLMODE_LOOPBACK 0x1 /* Loopback mode */
#define CAN_CTRLMODE_LISTENONLY 0x2 /* Listen-only mode */
#define CAN_CTRLMODE_3_SAMPLES 0x4 /* Triple sampling mode */
#define CAN_CTRLMODE_ONE_SHOT 0x8 /* One-Shot mode */
/*
* CAN device statistics