From 12a6075cabc0d9ffbc0366b44daa22f278606312 Mon Sep 17 00:00:00 2001 From: Oliver Hartkopp Date: Tue, 10 Jan 2017 18:52:06 +0100 Subject: can: dev: add CAN interface termination API This patch adds a netlink interface to configure the CAN bus termination of CAN interfaces. Inside the driver an array of supported termination values is defined: const u16 drvname_termination[] = { 60, 120, CAN_TERMINATION_DISABLED }; struct drvname_priv *priv; priv = netdev_priv(dev); priv->termination_const = drvname_termination; priv->termination_const_cnt = ARRAY_SIZE(drvname_termination); priv->termination = CAN_TERMINATION_DISABLED; And the funtion to set the value has to be defined: priv->do_set_termination = drvname_set_termination; Signed-off-by: Oliver Hartkopp Reviewed-by: Ramesh Shanmugasundaram Signed-off-by: Marc Kleine-Budde --- include/uapi/linux/can/netlink.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/uapi/linux/can') diff --git a/include/uapi/linux/can/netlink.h b/include/uapi/linux/can/netlink.h index 94ffe0c83ce7..7414771926fb 100644 --- a/include/uapi/linux/can/netlink.h +++ b/include/uapi/linux/can/netlink.h @@ -127,9 +127,14 @@ enum { IFLA_CAN_BERR_COUNTER, IFLA_CAN_DATA_BITTIMING, IFLA_CAN_DATA_BITTIMING_CONST, + IFLA_CAN_TERMINATION, + IFLA_CAN_TERMINATION_CONST, __IFLA_CAN_MAX }; #define IFLA_CAN_MAX (__IFLA_CAN_MAX - 1) +/* u16 termination range: 1..65535 Ohms */ +#define CAN_TERMINATION_DISABLED 0 + #endif /* !_UAPI_CAN_NETLINK_H */ -- cgit v1.2.3