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authorNikita Edward Baruzdin <nebaruzdin@gmail.com>2014-07-11 16:13:22 +0400
committerMarc Kleine-Budde <mkl@pengutronix.de>2014-07-15 11:34:19 +0400
commit4b9e1bab12c9b6de965268c2fbe6ebbb35dddd89 (patch)
treedd95e97fca21898ae45f19aa693993ab65a11ede /include/uapi/linux/can
parentf736d9985e69e72d9a2ebfd131a72ee8f870c6f3 (diff)
downloadlinux-4b9e1bab12c9b6de965268c2fbe6ebbb35dddd89.tar.xz
can: netlink: Add CAN_CTRLMODE_PRESUME_ACK flag
Most CAN controllers have a support for ignoring ACK absence. Some of them refer to this feature as a self test mode (e. g. SJA1000) and some include it as a part of a loopback mode (e. g. MCP2510). Setting the introduced flag via netlink should make CAN controller perform a successful transmission, even if there is no acknowledgement (dominant ACK bit) received. Signed-off-by: Nikita Edward Baruzdin <nebaruzdin@gmail.com> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'include/uapi/linux/can')
-rw-r--r--include/uapi/linux/can/netlink.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/can/netlink.h b/include/uapi/linux/can/netlink.h
index 3bbf5c7e1500..3e4323a3918d 100644
--- a/include/uapi/linux/can/netlink.h
+++ b/include/uapi/linux/can/netlink.h
@@ -97,6 +97,7 @@ struct can_ctrlmode {
#define CAN_CTRLMODE_ONE_SHOT 0x08 /* One-Shot mode */
#define CAN_CTRLMODE_BERR_REPORTING 0x10 /* Bus-error reporting */
#define CAN_CTRLMODE_FD 0x20 /* CAN FD mode */
+#define CAN_CTRLMODE_PRESUME_ACK 0x40 /* Ignore missing CAN ACKs */
/*
* CAN device statistics