Hello.
On 1/21/2015 12:48 AM, Ahmed S. Darwish wrote:
From: Ahmed S. Darwish <[email protected]>
On some x86 laptops, plugging a Kvaser device again after an
unplug makes the firmware always ignore the very first command.
For such a case, provide some room for retries instead of
completly exiting the driver init code.
Completely.
Signed-off-by: Ahmed S. Darwish <[email protected]>
---
drivers/net/can/usb/kvaser_usb.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c
index 640b0eb..068e76c 100644
--- a/drivers/net/can/usb/kvaser_usb.c
+++ b/drivers/net/can/usb/kvaser_usb.c
[...]
@@ -1632,7 +1632,15 @@ static int kvaser_usb_probe(struct usb_interface *intf,
usb_set_intfdata(intf, dev);
- err = kvaser_usb_get_software_info(dev);
+ /* On some x86 laptops, plugging a Kvaser device again after
+ * an unplug makes the firmware always ignore the very first
+ * command. For such a case, provide some room for retries
+ * instead of completly exiting the driver.
Completely.
[...]
WBR, Sergei
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