Bjørn Mork [mailto:bjorn@xxxxxxx] > Sent: Thursday, January 02, 2014 10:25 PM > To: Hayeswang > Cc: oliver@xxxxxxxxxx; netdev@xxxxxxxxxxxxxxx; nic_swsd; > linux-kernel@xxxxxxxxxxxxxxx; linux-usb@xxxxxxxxxxxxxxx > Subject: Re: [PATCH net-next v2 6/6] r8152: support RTL8153 > [...] > > +#if defined(CONFIG_USB_RTL8152) || > defined(CONFIG_USB_RTL8152_MODULE) > > +/* Samsung USB Ethernet Adapters */ > > +{ > > + USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, > 0xa101, USB_CLASS_COMM, > > + USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), > > + .driver_info = 0, > > +}, > > +#endif > > > We don't play the if-other-driver-is-enabled for any other of the > blacklisted devices, including other devices supported by the RTL8152 > driver. Why do we need it here? The USB nic have two configurations. One is the config 2 which is the ECM mode and uses the driver of cdc_ether. The other is the config 1 which use the driver of r8152. When the dangle is plugged, I find the configuration is 2 and the ECM driver would be loaded. By this way, you could select which mode you want to run. Some people would select ECM mode for performance, and the other would select r8152 for power saving. Best Regards, Hayes -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
