* [PATCH] USB: serial: pl2303: fix GT type detection
[not found] <YQpeE19WIeQO2b//@hovoldconsulting.com>
@ 2021-08-04 9:31 ` Johan Hovold
0 siblings, 0 replies; only message in thread
From: Johan Hovold @ 2021-08-04 9:31 UTC (permalink / raw)
To: Johan Hovold; +Cc: linux-usb, linux-kernel, Vasily Khoruzhick, stable
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@gmail.com>
Tested-by: Vasily Khoruzhick <anarsoul@gmail.com>
Cc: stable@vger.kernel.org # 5.13
Signed-off-by: Johan Hovold <johan@kernel.org>
---
drivers/usb/serial/pl2303.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 17601e32083e..930b3d50a330 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -432,6 +432,7 @@ static int pl2303_detect_type(struct usb_serial *serial)
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.
--
2.31.1
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2021-08-04 9:31 ` [PATCH] USB: serial: pl2303: fix GT type detection Johan Hovold
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