Hi Sir
we want to implement Ethernet over usb on BBB and used SDK 03.00.00.04
when we plug in USB-device and the log is listed as below
[ 12.292980] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
[ 12.417848] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 1
[ 12.520022] hub 1-0:1.0: USB hub found
[ 12.568012] hub 1-0:1.0: 1 port detected
[ 12.585874] remoteproc0: powering up 4a334000.pru0
[ 12.591358] remoteproc0: Booting fw image am335x-pru0-fw, size 80252
[ 12.675464] ti-pruss 4a300000.pruss: configured system_events = 0x1000000000000000 intr_channels = 0x00000001 host_intr = 0x00000001
[ 12.810226] remoteproc0: remote processor 4a334000.pru0 is now up
[ 12.865472] virtio_rpmsg_bus virtio0: creating channel rpmsg-pru addr 0x1e
[ 12.873169] virtio_rpmsg_bus virtio0: rpmsg host is online
[ 12.925601] remoteproc1: powering up 4a338000.pru1
[ 12.931047] remoteproc1: Booting fw image am335x-pru1-fw, size 80252
[ 13.005322] ti-pruss 4a300000.pruss: configured system_events = 0x0800000000000000 intr_channels = 0x00000002 host_intr = 0x00000002
[ 13.017411] usb 1-1: new high-speed USB device number 2 using musb-hdrc
[ 13.056255] remoteproc1: remote processor 4a338000.pru1 is now up
[ 13.062855] virtio_rpmsg_bus virtio1: creating channel rpmsg-pru addr 0x1f
[ 13.077499] virtio_rpmsg_bus virtio1: rpmsg host is online
[ 13.156353] rpmsg_pru rpmsg0: new rpmsg_pru device: /dev/rpmsg_pru30
[ 13.176294] rpmsg_pru rpmsg1: new rpmsg_pru device: /dev/rpmsg_pru31
[ 13.745523] cdc_acm 1-1:1.0: ttyACM0: USB ACM device
[ 13.777355] cdc_acm 1-1:1.2: ttyACM1: USB ACM device
[ 13.811366] cdc_ether 1-1:1.6 eth0: register 'cdc_ether' at usb-musb-hdrc.1.auto-1, CDC Ethernet Device, 00:00:11:12:13:14
[ 13.829259] cdc_acm 1-1:1.4: ttyACM2: USB ACM device
[ 13.847776] usbcore: registered new interface driver cdc_acm
[ 13.855308] cdc_ether 1-1:1.8 eth1: register 'cdc_ether' at usb-musb-hdrc.1.auto-1, CDC Ethernet Device, 00:00:11:12:13:16
[ 13.869332] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[ 13.886139] cdc_ether 1-1:1.10 eth2: register 'cdc_ether' at usb-musb-hdrc.1.auto-1, CDC Ethernet Device, 00:00:11:12:13:18
[ 13.961890] usbcore: registered new interface driver cdc_ether
[ 14.539083] IPv6: ADDRCONF(NETDEV_UP): eth2: link is not ready
we found the device on dev/ttyACM0.
But we executed command and got the error message as below
root@am335x-evm:/usr/sbin# echo -ne 'AT+XCEDATA=1,1\r\n' > /dev/ttyACM0; udhcpc -i eth1
udhcpc (v1.24.1) started
Sending discover...
[ 1273.039598] cdc_ether 1-1:1.8 eth1: kevent 11 may have been dropped
Sending discover...
Sending discover...
If we used the pre-image on BBB(Kernel 3.8 with ubuntu) and did the same thing as above
the message showed as below
rename4glebone:/usr/sbin# echo -ne 'AT+XCEDATA=1,1\r\n' > /dev/ttyACM0;dhclient rename4
root@beaglebone:/usr/sbin# ifconfig
rename4 Link encap:Ethernet HWaddr 00:00:11:12:13:16
inet addr:10.34.11.56 Bcast:10.255.255.255 Mask:255.0.0.0
inet6 addr: fe80::200:11ff:fe12:1316/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:4 errors:0 dropped:0 overruns:0 frame:0
TX packets:27 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1756 (1.7 KiB) TX bytes:7243 (7.0 KiB)
we can get the Ethernet device on USB1 port.
please advise why we got below message and cannot set it as ethernet device.
Sending discover...
[ 1273.039598] cdc_ether 1-1:1.8 eth1: kevent 11 may have been dropped
Sending discover...
thank you
BR
Yimin
