USB: serial: cp210x: add part-number debug printk

Add a part-number debug printk to facilitate debugging.

Signed-off-by: Johan Hovold <johan@kernel.org>

diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index b98454f..fd51498 100644 (file)
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -2140,6 +2140,8 @@ static void cp210x_determine_type(struct usb_serial *serial)
                return;
        }
 
+       dev_dbg(&serial->interface->dev, "partnum = 0x%02x\n", priv->partnum);
+
        switch (priv->partnum) {
        case CP210X_PARTNUM_CP2102:
                cp2102_determine_quirks(serial);