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.

Link: https://github.com/name-kurniawan/usb-lan
Link: https://www.draisberghof.de/usb_modeswitch/bb/viewtopic.php?t=2185
Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>
Link: https://patch.msgid.link/20251211062451.139036-1-enelsonmoore@gmail.com
[pabeni@redhat.com: fixes link tags]
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

diff --git a/drivers/net/usb/sr9700.c b/drivers/net/usb/sr9700.c
index 091bc2a..d8ffb59 100644 (file)
--- 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 */
 };