There are at least two hardware revisions, this may be helpful in case compatibility issues need to be debugged. Signed-off-by: Grigori Goronzy <greg@xxxxxxxxxxxx> --- 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 8386e95..52bbc4b 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -211,6 +211,7 @@ static int ch341_configure(struct usb_device *dev, struct ch341_private *priv) r = ch341_control_in(dev, CH341_VERSION, 0, 0, buffer, size); if (r < 0) goto out; + dev_dbg(&dev->dev, "chip version: %d\n", buffer[0]); r = ch341_control_out(dev, CH341_SERIAL_INIT, 0, 0); if (r < 0) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
