[PATCH net-next] net: usb: cdc_ncm: add Apple Silicon MacBook Air (05ac:1903) device ID

[Divyanshu Jha]

The Apple Silicon MacBook Air exposes a CDC-NCM interface (05ac:1903)
when connected host-to-host over USB-C.

Like other Apple CDC-NCM peripherals (0x1902 and 0x1905), Apple's
firmware omits the CDC status interrupt endpoint. This causes the
standard cdc_ncm probe to fail with a missing endpoint error.

Add device ID 05ac:1903 to cdc_ncm_devs binding to
apple_private_interface_info so the driver bypasses the interrupt
check and initializes host-to-host networking successfully.

Signed-off-by: Divyanshu Jha <divyanshuj2006@xxxxxxxxx>
---
 drivers/net/usb/cdc_ncm.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 35db38cb3..6848b9421 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -2019,6 +2019,12 @@ static const struct usb_device_id cdc_devs[] = {
 	{ USB_DEVICE_INTERFACE_NUMBER(0x05ac, 0x1902, 2),
 		.driver_info = (unsigned long)&apple_private_interface_info,
 	},
+	{ USB_DEVICE_INTERFACE_NUMBER(0x05ac, 0x1903, 0),
+		.driver_info = (unsigned long)&apple_private_interface_info,
+	},
+	{ USB_DEVICE_INTERFACE_NUMBER(0x05ac, 0x1903, 2),
+		.driver_info = (unsigned long)&apple_private_interface_info,
+	},
 	{ USB_DEVICE_INTERFACE_NUMBER(0x05ac, 0x1905, 0),
 		.driver_info = (unsigned long)&apple_private_interface_info,
 	},
-- 
2.47.3