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From: Johan Hovold <johan@kernel.org>
To: Johan Hovold <johan@kernel.org>
Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
	Vasily Khoruzhick <anarsoul@gmail.com>,
	stable@vger.kernel.org
Subject: [PATCH] USB: serial: pl2303: fix GT type detection
Date: Wed,  4 Aug 2021 11:31:00 +0200	[thread overview]
Message-ID: <20210804093100.24811-1-johan@kernel.org> (raw)
In-Reply-To: <YQpeE19WIeQO2b//@hovoldconsulting.com>

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


           reply	other threads:[~2021-08-04  9:32 UTC|newest]

Thread overview: expand[flat|nested]  mbox.gz  Atom feed
 [parent not found: <YQpeE19WIeQO2b//@hovoldconsulting.com>]

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