Beagle Bone USB randomness


To a powerd (2.8A) USB Hub there is connected
a keyboard and a touchpad.

The hub is connected to the Beaglebone Black.

Normally I first power the Hub and start the
Beaglebone black then.

If the board is up and running no USB device
is recognized.

Replugging of the Hub to the BBB or of the devices
to the Hub does not help.

Powercycling of the Hub does not help also.

Sometimes the hub and the devices are recognized,
when I first power the BBB (which powers the hub
then) and after that power the hub.

With the BBW I didn't have problems of this kind
with the same setup.

How can I prevent the problem?

Thank you very much in advance for any help!

Best regards,

PS: These are the devices:
Bus 001 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
#Keyboard KBTalking Pure60%
Bus 001 Device 008: ID 04d9:0134 Holtek Semiconductor, Inc.
#Toucpad Perixx Peripad 501
Bus 001 Device 007: ID 099a:a002 Zippy Technology Corp.

Sorry, I forgot:

Its the A5C revision of the board. <> [13-08-03 11:16]:

Make sure the 5V supply and the BBB supply are connected to the same ground.

Plug in the HUB to the BBB.

Boot the BBB.

Then connect power to the HUB.


Hi Gerald,

thank you vey much for the info!
Will try that later...currently my BBB
compiles and compiles and compiles.... :))

Best regards,

Gerald Coley <> [13-08-03 16:00]: