[PATCH 5.13 17/24] USB: serial: pl2303: fix GL type detection

From: Greg Kroah-Hartman
Date: Mon Sep 06 2021 - 08:59:37 EST


From: Robert Marko <robert.marko@xxxxxxxxxx>

commit dcf097e7d21fbdfbf20e473ac155f4d154018374 upstream.

At least some PL2303GL have a bcdDevice of 0x405 instead of 0x100 as the
datasheet claims. Add it to the list of known release numbers for the
HXN (G) type.

Fixes: 894758d0571d ("USB: serial: pl2303: tighten type HXN (G) detection")
Signed-off-by: Robert Marko <robert.marko@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # 5.13
Link: https://lore.kernel.org/r/20210826110239.5269-1-robert.marko@xxxxxxxxxx
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/serial/pl2303.c | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -433,6 +433,7 @@ static int pl2303_detect_type(struct usb
switch (bcdDevice) {
case 0x100:
case 0x305:
+ case 0x405:
/*
* Assume it's an HXN-type if the device doesn't
* support the old read request value.