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>
diff --git a/include/linux/can/netlink.h b/include/linux/can/netlink.h
index 9ecbb78..c818335 100644
--- a/include/linux/can/netlink.h
+++ b/include/linux/can/netlink.h
@@ -80,6 +80,7 @@
#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