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can: extend sockaddr_can to include j1939 members 

This patch prepares struct sockaddr_can for SAE J1939.

Signed-off-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Kurt Van Dijck 2018-10-08 11:48:35 +02:00 committed by Marc Kleine-Budde
parent 2a0c9aaa62
commit f5223e9eee
1 changed files with 17 additions and 0 deletions
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17
include/uapi/linux/can.h
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@ -175,6 +175,23 @@ struct sockaddr_can {
/* transport protocol class address information (e.g. ISOTP) */ /* transport protocol class address information (e.g. ISOTP) */
struct { canid_t rx_id, tx_id; } tp; struct { canid_t rx_id, tx_id; } tp;
/* J1939 address information */
struct {
/* 8 byte name when using dynamic addressing */
__u64 name;
/* pgn:
* 8 bit: PS in PDU2 case, else 0
* 8 bit: PF
* 1 bit: DP
* 1 bit: reserved
*/
__u32 pgn;
/* 1 byte address */
__u8 addr;
} j1939;
/* reserved for future CAN protocols address information */ /* reserved for future CAN protocols address information */
} can_addr; } can_addr;
}; };