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Commit a77a8c23 authored by Frank Schäfer's avatar Frank Schäfer Committed by Greg Kroah-Hartman
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pl2303: improve the chip type information output on startup 



The chip type distinction is getting more and more relevant and
complicating, so always print the chip type.
Printing a name string is also much better than just printing an
internal index number.

Signed-off-by: default avatarFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 73b583af

drivers/usb/serial/pl2303.c

+10 −5
Original line number Diff line number Diff line
@@ -177,6 +177,7 @@ static int pl2303_startup(struct usb_serial *serial) 
{

	struct pl2303_serial_private *spriv;

	enum pl2303_type type = type_0;

	char *type_str = "unknown (treating as type_0)";

	unsigned char *buf;



	spriv = kzalloc(sizeof(*spriv), GFP_KERNEL);
@@ -189,14 +190,18 @@ static int pl2303_startup(struct usb_serial *serial) 
		return -ENOMEM;

	}



	if (serial->dev->descriptor.bDeviceClass == 0x02)

	if (serial->dev->descriptor.bDeviceClass == 0x02) {

		type = type_0;

	else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40)

		type_str = "type_0";

	} else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40) {

		type = HX;

	else if (serial->dev->descriptor.bDeviceClass == 0x00

		 || serial->dev->descriptor.bDeviceClass == 0xFF)

		type_str = "X/HX";

	} else if (serial->dev->descriptor.bDeviceClass == 0x00

		   || serial->dev->descriptor.bDeviceClass == 0xFF) {

		type = type_1;

	dev_dbg(&serial->interface->dev, "device type: %d\n", type);

		type_str = "type_1";

	}

	dev_dbg(&serial->interface->dev, "device type: %s\n", type_str);



	spriv->type = type;

	usb_set_serial_data(serial, spriv);