提交 b52e1113 编写于 作者: G Greg Kroah-Hartman

Revert "pl2303: improve the chip type information output on startup"

This reverts commit a77a8c23.

Revert all of the pl2303 changes that went into 3.12-rc1 and -rc2 as
they cause regressions on some versions of the chip.  This will all be
revisited for later kernel versions when we can figure out how to handle
this in a way that does not break working devices.
Reported-by: NMika Westerberg <mika.westerberg@linux.intel.com>
Cc: Frank Schäfer <fschaefer.oss@googlemail.com>
Acked-by: NJohan Hovold <jhovold@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
上级 e8bbd5c4
......@@ -177,7 +177,6 @@ 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);
......@@ -190,18 +189,14 @@ 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;
type_str = "type_0";
} else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40) {
else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40)
type = HX;
type_str = "X/HX";
} else if (serial->dev->descriptor.bDeviceClass == 0x00
|| serial->dev->descriptor.bDeviceClass == 0xFF) {
else if (serial->dev->descriptor.bDeviceClass == 0x00
|| serial->dev->descriptor.bDeviceClass == 0xFF)
type = type_1;
type_str = "type_1";
}
dev_dbg(&serial->interface->dev, "device type: %s\n", type_str);
dev_dbg(&serial->interface->dev, "device type: %d\n", type);
spriv->type = type;
usb_set_serial_data(serial, spriv);
......
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