linux-kernel - [PATCH 2/2] USB: serial: cp210x: add part-number debug printk

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Date:   Wed, 22 Sep 2021 13:31:00 +0200
From:   Johan Hovold <johan@...nel.org>
To:     Johan Hovold <johan@...nel.org>
Cc:     Malte Di Donato <malte@...-soft.org>, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] USB: serial: cp210x: add part-number debug printk

Add a part-number debug printk to facilitate debugging.

Signed-off-by: Johan Hovold <johan@...nel.org>
---
 drivers/usb/serial/cp210x.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index b98454fe08ea..fd51498ab108 100644
--- 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);
-- 
2.32.0