[PATCH v3 2/2] can: peak_usb: Add a "firmware update available" msg to old PCAN-USB
From: Stephane Grosjean <hidden>
Date: 2021-07-15 14:29:09
Subsystem:
can network drivers, the rest · Maintainers:
Marc Kleine-Budde, Vincent Mailhol, Linus Torvalds
When the driver detects that the PCAN-USB device runs an old firmware (< 4.1) then it prints a message suggesting to contact [off-list ref] for a possible firmware update. Signed-off-by: Stephane Grosjean <redacted> --- 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@peak-system.com\n"); + } + return 0; }
--
2.25.1