Hi, I'm currently trying to get a USB ethernet device to appear as an interface on a rooted Motorola Atrix 4G from AT&T. The build number for this software is OLYFR_U4_1.2.6 with a kernel version of 2.6.32.9. I have the multimedia docking station (which has USB ports available) that Motorola has available for the phone. The USB ethernet device that I'm plugging into the phone registers correctly on a laptop that is running Ubuntu 10.10 and uses the generic cdc_ether driver.
Information I have gather thus far is from dmesg in which the following shows up: <6>[ 77.227517] usb 1-1.3: new high speed USB device using tegra- ehci and address 4 <6>[ 77.276658] usb 1-1.3: New USB device found, idVendor=0525, idProduct=a4a2 <6>[ 77.276669] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0 <6>[ 77.276679] usb 1-1.3: Product: RNDIS/Ethernet Gadget <6>[ 77.276687] usb 1-1.3: Manufacturer: Linux 2.6.33.7-rt29 with musb_hdrc <6>[ 77.277117] usb 1-1.3: configuration #1 chosen from 2 choices <6>[ 77.288180] usb1: register 'cdc_ether' at usb-tegra-ehci.0-1.3, CDC Ethernet Device, fa:b5:e8:b3:5c:34 Also I have found that the device is created at /sys/class/net/usb1 which really maps to /sys/devices/platform/tegra-ehci.0/ usb1/1-1/1-1.4/1-1.4:1.0/. If I do a cd into device (/sys/devices/ platform/tegra-ehci.0/usb1/1-1/1-1.4/1-1.4:1.0/net/usb1) the following information is in uevent: DEVTYPE=usb_interface DRIVER=cdc_ether DEVICE=/proc/bus/usb/001/021 PRODUCT=525/a4a2/316 TYPE=2/0/0 INTERFACE=2/6/0 MODALIAS=usb:v0525pA4A2d0316dc02dsc00dp00ic02isc06ip00 It seems that the cdc_ether driver is working correctly it is just that it is not being mapped as an interface (as far as ifconfig is concerned) since it doesn't appear if "busybox ifconfig" (or just ifconfig) is run. I know with most embedded systems mdev is used to do the mappings for the interface however it doesn't appear android uses mdev. My question is how does Android do the equilivant of mdev or mapping of interfaces? Or if that isn't pharse properly enough, how do I get this USB ethernet device to show up as an interface? I ultimately want these USB ethernet device to show up as "usb1" when I run "ifconfig" and right now it doesn't and I don't know how to get it to. Thanks, -Ryan -- unsubscribe: android-kernel+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-kernel
