netdev - [PATCH] net: usb: sr9700: support devices with virtual driver CD

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Message-ID: <20251211062451.139036-1-enelsonmoore@gmail.com>
Date: Wed, 10 Dec 2025 22:24:51 -0800
From: Ethan Nelson-Moore <enelsonmoore@...il.com>
To: netdev@...r.kernel.org
Cc: Ethan Nelson-Moore <enelsonmoore@...il.com>
Subject: [PATCH] net: usb: sr9700: support devices with virtual driver CD

Some SR9700 devices have an SPI flash chip containing a virtual driver
CD, in which case they appear as a device with two interfaces and
product ID 0x9702. Interface 0 is the driver CD and interface 1 is the
Ethernet device.

See:
https://github.com/name-kurniawan/usb-lan
https://www.draisberghof.de/usb_modeswitch/bb/viewtopic.php?t=2185
Signed-off-by: Ethan Nelson-Moore <enelsonmoore@...il.com>
---
 drivers/net/usb/sr9700.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/usb/sr9700.c b/drivers/net/usb/sr9700.c
index 091bc2aca7e8..d8ffb59eaf34 100644
--- a/drivers/net/usb/sr9700.c
+++ b/drivers/net/usb/sr9700.c
@@ -539,6 +539,11 @@ static const struct usb_device_id products[] = {
 		USB_DEVICE(0x0fe6, 0x9700),	/* SR9700 device */
 		.driver_info = (unsigned long)&sr9700_driver_info,
 	},
+	{
+		/* SR9700 with virtual driver CD-ROM - interface 0 is the CD-ROM device */
+		USB_DEVICE_INTERFACE_NUMBER(0x0fe6, 0x9702, 1),
+		.driver_info = (unsigned long)&sr9700_driver_info,
+	},
 	{},			/* END */
 };
 
-- 
2.43.0