CPC-USB is using a ARM7 core with little endian byte order. The "id" field in can_msg needs byte order conversion from/to CPU byte order.
Signed-off-by: Sebastian Haas <[email protected]> --- drivers/net/can/usb/ems_usb.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c index 9012e0a..abdbd9c 100644 --- a/drivers/net/can/usb/ems_usb.c +++ b/drivers/net/can/usb/ems_usb.c @@ -319,7 +319,7 @@ static void ems_usb_rx_can_msg(struct ems_usb *dev, struct ems_cpc_msg *msg) cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame)); - cf->can_id = msg->msg.can_msg.id; + cf->can_id = le32_to_cpu(msg->msg.can_msg.id); cf->can_dlc = min_t(u8, msg->msg.can_msg.length, 8); if (msg->type == CPC_MSG_TYPE_EXT_CAN_FRAME @@ -813,6 +813,9 @@ static netdev_tx_t ems_usb_start_xmit(struct sk_buff *skb, struct net_device *ne msg->length = CPC_CAN_MSG_MIN_SIZE + cf->can_dlc; } + /* Respect byte order */ + msg->msg.can_msg.id = cpu_to_le32(msg->msg.can_msg.id); + for (i = 0; i < MAX_TX_URBS; i++) { if (dev->tx_contexts[i].echo_index == MAX_TX_URBS) { context = &dev->tx_contexts[i]; -- EMS Dr. Thomas Wuensche e.K. Sonnenhang 3 85304 Ilmmuenster HRA Neuburg a.d. Donau, HR-Nr. 70.106 Phone: +49-8441-490260 Fax : +49-8441-81860 http://www.ems-wuensche.com _______________________________________________ Socketcan-core mailing list [email protected] https://lists.berlios.de/mailman/listinfo/socketcan-core
