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USB: serial: ch341: add debug output for chip version

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Will probably be helpful if there are any more compatibility issues.

Signed-off-by: Aidan Thornton <makosoft@gmail.com>
Reviewed-by: Grigori Goronzy <greg@chown.ath.cx>
Signed-off-by: Johan Hovold <johan@kernel.org>
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Aidan Thornton 2016-10-22 22:02:26 +01:00 committed by Johan Hovold
parent ba781bdf86
commit a98b69002a
1 changed files with 1 additions and 0 deletions
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drivers/usb/serial/ch341.c
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@ -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); r = ch341_control_in(dev, CH341_REQ_READ_VERSION, 0, 0, buffer, size);
if (r < 0) if (r < 0)
goto out; goto out;
dev_dbg(&dev->dev, "Chip version: 0x%02x\n", buffer[0]);
r = ch341_control_out(dev, CH341_REQ_SERIAL_INIT, 0, 0); r = ch341_control_out(dev, CH341_REQ_SERIAL_INIT, 0, 0);
if (r < 0) if (r < 0)