I'm working on a custom board with an i.MX6DL on it. I'm currently trying to get a USB to Ethernet adapter working on this board. I can see it enumerate, but it won't send data. The adapter works on a Ubuntu machine, so I've verified the adapter is not an issue.
When I plug in my tp-link USB 3.0 to Gigabit Ethernet Network Adaptor and check the kernel logs:
[ 90.053870] usb 1-1: new high-speed USB device number 2 using ci_hdrc
[ 90.226877] usbcore: registered new interface driver r8152
[ 90.236798] usbcore: registered new interface driver cdc_ether
[ 90.353891] usb 1-1: reset high-speed USB device number 2 using ci_hdrc
[ 90.545992] r8152 1-1:1.0 eth2: v1.08.0 (2015/01/13)
I then plugged in a USB cable to the adaptor, and then to the modem, so there's messages of the link not being ready, followed by the link coming on line:
[ 138.714150] IPv6: ADDRCONF(NETDEV_UP): eth2: link is not ready
[ 302.993372] IPv6: ADDRCONF(NETDEV_CHANGE): eth2: link becomes ready
Then I can see "eth2" in a check of "ip link show" command is up and ready to go:
8: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
link/ether a0:ce:c8:53:eb:f8 brd ff:ff:ff:ff:ff:ff
However attempting to run a "ping" command via this interface fails.
[root ~]# ping -c 2 -I eth2 8.8.8.8
PING 8.8.8.8 (8.8.8.8): 56 data bytes
--- 8.8.8.8 ping statistics ---
2 packets transmitted, 0 packets received, 100% packet loss
Running the same setup and commands on my Ubuntu machine, the tp-link is active and able to ping successfully.
Any ideas why this wouldn't be working on the i.MX6 board?
