From 4b9e1bab12c9b6de965268c2fbe6ebbb35dddd89 Mon Sep 17 00:00:00 2001 From: Nikita Edward Baruzdin Date: Fri, 11 Jul 2014 16:13:22 +0400 Subject: [PATCH] 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 Acked-by: Oliver Hartkopp Signed-off-by: Marc Kleine-Budde --- include/uapi/linux/can/netlink.h | 1 + 1 file changed, 1 insertion(+) 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 -- 2.30.2