diff options
Diffstat (limited to 'drivers/net/usb/cdc_ether.c')
| -rw-r--r-- | drivers/net/usb/cdc_ether.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c index 178b956501a7..6c7a169d906a 100644 --- a/drivers/net/usb/cdc_ether.c +++ b/drivers/net/usb/cdc_ether.c @@ -221,9 +221,16 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) goto bad_desc; } skip: - if ( rndis && - header.usb_cdc_acm_descriptor && - header.usb_cdc_acm_descriptor->bmCapabilities) { + /* Communcation class functions with bmCapabilities are not + * RNDIS. But some Wireless class RNDIS functions use + * bmCapabilities for their own purpose. The failsafe is + * therefore applied only to Communication class RNDIS + * functions. The rndis test is redundant, but a cheap + * optimization. + */ + if (rndis && is_rndis(&intf->cur_altsetting->desc) && + header.usb_cdc_acm_descriptor && + header.usb_cdc_acm_descriptor->bmCapabilities) { dev_dbg(&intf->dev, "ACM capabilities %02x, not really RNDIS?\n", header.usb_cdc_acm_descriptor->bmCapabilities); @@ -793,6 +800,13 @@ static const struct usb_device_id products[] = { .driver_info = 0, }, +/* ThinkPad USB-C Dock Gen 2 (based on Realtek RTL8153) */ +{ + USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0xa387, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), + .driver_info = 0, +}, + /* NVIDIA Tegra USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ { USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM, |