Commit c1c5523d authored Dec 23, 2009 by Marc Kleine-Budde Committed by David S. Miller Jan 03, 2010

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>

parent 20dd3850

include/linux/can/netlink.h

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -80,6 +80,7 @@ struct can_ctrlmode {
	#define CAN_CTRLMODE_LOOPBACK 0x1 /* Loopback mode */		#define CAN_CTRLMODE_LOOPBACK 0x1 /* Loopback mode */
	#define CAN_CTRLMODE_LISTENONLY 0x2 /* Listen-only mode */		#define CAN_CTRLMODE_LISTENONLY 0x2 /* Listen-only mode */
	#define CAN_CTRLMODE_3_SAMPLES 0x4 /* Triple sampling mode */		#define CAN_CTRLMODE_3_SAMPLES 0x4 /* Triple sampling mode */
			#define CAN_CTRLMODE_ONE_SHOT 0x8 /* One-Shot mode */

	/*		/*
	* CAN device statistics		* CAN device statistics