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authorAidan Thornton <makosoft@gmail.com>2016-10-22 23:02:26 +0200
committerJohan Hovold <johan@kernel.org>2016-10-24 17:41:30 +0200
commita98b69002a1656f1d50e24d6c189a66a5f55f783 (patch)
treeea6783b6cc993c9510caeabdf514c752fffb2cfa /drivers/usb/serial/ch341.c
parentUSB: serial: ch341: add support for parity, frame length, stop bits (diff)
downloadlinux-a98b69002a1656f1d50e24d6c189a66a5f55f783.tar.xz
linux-a98b69002a1656f1d50e24d6c189a66a5f55f783.zip
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 <makosoft@gmail.com> Reviewed-by: Grigori Goronzy <greg@chown.ath.cx> Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb/serial/ch341.c')
-rw-r--r--drivers/usb/serial/ch341.c1
1 files changed, 1 insertions, 0 deletions
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)