When the driver detects that the PCAN-USB device runs an old firmware
(< 4.1) then it prints a message suggesting to contact
<support@xxxxxxxxxxxxxxx> for a possible firmware update.
Signed-off-by: Stephane Grosjean <s.grosjean@xxxxxxxxxxxxxxx>
---
drivers/net/can/usb/peak_usb/pcan_usb.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb.c b/drivers/net/can/usb/peak_usb/pcan_usb.c
index 3af3136645ac..cb492584fdb0 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb.c
@@ -850,6 +850,19 @@ static int pcan_usb_init(struct peak_usb_device *dev)
pcan_usb.name, dev->device_rev, serial_number,
pcan_usb.ctrl_count);
+ /* Since rev 4.1, PCAN-USB is able to make single-short as well as
+ * looped back frames.
+ */
+ if (dev->device_rev >= 41) {
+ struct can_priv *priv = netdev_priv(dev->netdev);
+
+ priv->ctrlmode_supported |= CAN_CTRLMODE_ONE_SHOT |
+ CAN_CTRLMODE_LOOPBACK;
+ } else {
+ dev_info(dev->netdev->dev.parent,
+ "Firmware update available. Please contact support@xxxxxxxxxxxxxxx\n");
+ }
+
return 0;
}
--
2.25.1
