From a98b69002a1656f1d50e24d6c189a66a5f55f783 Mon Sep 17 00:00:00 2001 From: Aidan Thornton Date: Sat, 22 Oct 2016 22:02:26 +0100 Subject: [PATCH] USB: serial: ch341: add debug output for chip version Will probably be helpful if there are any more compatibility issues. Signed-off-by: Aidan Thornton Reviewed-by: Grigori Goronzy Signed-off-by: Johan Hovold --- drivers/usb/serial/ch341.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index af9edbedfd28..2597b83a8ae2 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -212,6 +212,7 @@ static int ch341_configure(struct usb_device *dev, struct ch341_private *priv) r = ch341_control_in(dev, CH341_REQ_READ_VERSION, 0, 0, buffer, size); if (r < 0) goto out; + dev_dbg(&dev->dev, "Chip version: 0x%02x\n", buffer[0]); r = ch341_control_out(dev, CH341_REQ_SERIAL_INIT, 0, 0); if (r < 0)