USB turns off?

GoogleGroups
1

I have my beagle board running the 2.6.22 kernel from
http://code.google.com/p/beagleboard/wiki/BeagleSourceCode . I added a
USB ethernet dongle ($6 at Frys :slight_smile: and it works. However, I keep
getting the USB port "turned off", as seen in console messages below:

# <3>hub 1-0:1.0: port 1 disabled by hub (EMI?), re-enabling...
hub 1-0:1.0: port 1 disabled by hub (EMI?), re-enabling...
<6>usb 1-1: USB disconnect, address 2
usb 1-1: USB disconnect, address 2
<6>usb 1-1.4: USB disconnect, address 3
usb 1-1.4: USB disconnect, address 3
<6>usb 1-1.4.1: USB disconnect, address 4
usb 1-1.4.1: USB disconnect, address 4
<6>eth0: unregister 'asix' usb-ehci-omap.0-1.4.1, ASIX AX88772 USB 2.0
Ethernet
eth0: unregister 'asix' usb-ehci-omap.0-1.4.1, ASIX AX88772 USB 2.0
Ethernet
ping: sendto: Network is unreachable

As you can see, I am using a (powered) hub. I get the same results w/o
the hub. At first I thought is was due to inactivity, but I had a ping
running in the background and it still disconnected.

Any ideas?

Mark

2

I don't have any ideas right-off, but I have seen something similar
once and I fear it could be a board test coverage issue. It sounds
like something we need to get to the bottom of.

Was this "ASIX AX88772" device the only one connected to the hub?

How long between the drops, typically?

Do you have a chance to capture the voltage or traffic over the bus?

3

I use NETGEAR USB ethernet dongle, the driver detected is asix. I played around a bit with default config, try the attached one, might help.

Regards,
Khasim

omap3_beagle_defconfig (31.5 KB)

4

Thanks, I don’t think my problem is a config problem. My board and kernel basically work (after updating the config and making a new kernel), but it randomly stops working after awhile. It appears it is probably a board issue, so I am returning the board for repairs.

Mark