[PATCH 5.13 078/175] USB: serial: pl2303: fix GT type detection
From: Greg Kroah-Hartman
Date: Tue Aug 10 2021 - 13:59:52 EST
From: Johan Hovold <johan@xxxxxxxxxx>
commit 3212a99349cee5fb611d3ffcf0e65bc3cd6dcf2f upstream.
At least some PL2303GT have a bcdDevice of 0x305 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")
Reported-by: Vasily Khoruzhick <anarsoul@xxxxxxxxx>
Tested-by: Vasily Khoruzhick <anarsoul@xxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # 5.13
Link: https://lore.kernel.org/r/20210804093100.24811-1-johan@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
@@ -432,6 +432,7 @@ static int pl2303_detect_type(struct usb
case 0x200:
switch (bcdDevice) {
case 0x100:
+ case 0x305:
/*
* Assume it's an HXN-type if the device doesn't
* support the old read request value.