[ale] New 2.0 USB hub

[Richard Bronosky]

Many hubs, even if they don't come with one, have a female barrel plug
for a wall wart. You many try your device on a powered USB hub.

On 5/30/09, Chris Fowler <cfowler at outpostsentinel.com> wrote:
> I bought a new 2.0 USB hub to attach a SeaLink USB serial device and a
> printer to the same port.  When I was trying to use some software that
> uses the serial device it kept going back and forth between USB0 and
> USB1.  In the end I had to connect it directly to the computer.
>
>
> [884884.225044] hub 2-3:1.0: port 1 disabled by hub (EMI?),
> re-enabling...
> [884884.228032] usb 2-3.1: USB disconnect, address 34
> [884884.228339] ftdi_sio 2-3.1:1.0: device disconnected
> [884884.503048] usb 2-3.1: new full speed USB device using ohci_hcd and
> address 35
> [884884.625211] usb 2-3.1: configuration #1 chosen from 1 choice
> [884884.634812] ftdi_sio 2-3.1:1.0: FTDI USB Serial Device converter
> detected
> [884884.634856] usb 2-3.1: Detected FT232BM
> [884884.634968] usb 2-3.1: FTDI USB Serial Device converter now attached
> to ttyUSB0
> [884890.856920] ftdi_sio ttyUSB1: FTDI USB Serial Device converter now
> disconnected from ttyUSB1
> [884898.564045] usb 2-3.3: USB disconnect, address 31
> [884898.567124] usblp0: removed
> [884912.801051] hub 2-3:1.0: port 1 disabled by hub (EMI?),
> re-enabling...
> [884912.804036] usb 2-3.1: USB disconnect, address 35
> [884912.804884] ftdi_sio 2-3.1:1.0: device disconnected
> [884913.054042] usb 2-3.1: new full speed USB device using ohci_hcd and
> address 36
> [884913.184198] usb 2-3.1: configuration #1 chosen from 1 choice
> [884913.196158] ftdi_sio 2-3.1:1.0: FTDI USB Serial Device converter
> detected
> [884913.200833] usb 2-3.1: Detected FT232BM
> [884913.200974] usb 2-3.1: FTDI USB Serial Device converter now attached
> to ttyUSB1
> [884916.377366] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
> disconnected from ttyUSB0
> [884923.031831] usb 2-3: USB disconnect, address 29
> [884923.031839] usb 2-3.1: USB disconnect, address 36
> [884923.032286] ftdi_sio ttyUSB1: FTDI USB Serial Device converter now
> disconnected from ttyUSB1
> [884923.032312] ftdi_sio 2-3.1:1.0: device disconnected
> [884928.964045] usb 2-3: new full speed USB device using ohci_hcd and
> address 37
> [884929.184739] usb 2-3: configuration #1 chosen from 1 choice
> [884929.187184] ftdi_sio 2-3:1.0: FTDI USB Serial Device converter
> detected
> [884929.187230] usb 2-3: Detected FT232BM
> [884929.187324] usb 2-3: FTDI USB Serial Device converter now attached
> to ttyUSB0
>
> This serial converter has acted strangely on hubs and I need to attach
> it directly to the computer.  Maybe it requires the full 500ma?
>
>
> Chris
>
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.!# RichardBronosky #!.