[olug] problems with external USB device

[Jon Larsen]

Is the hard drive a USB-bus powered device or does it have it's own 
power brick?

My bus-powered USB hard drive has two usb connectors to get enough voltage 
to spin up the drive and power the ATA2USB interface.

If you have a self-powered USB hub, give that a try.  Some of the older 
motherboard mounted USB connectors couldn't ouput enough power for 
devices to work properly.

On Wed, 31 Jan 2007, Ryan Stille wrote:

> Date: Wed, 31 Jan 2007 10:28:58 -0600
> From: Ryan Stille <ryan at cfwebtools.com>
> Reply-To: Omaha Linux User Group <olug at olug.org>
> To: Omaha Linux User Group <olug at olug.org>
> Subject: [olug] problems with external USB device
> 
> I'm trying to get an external USB hard drive working with my Dell 
> server.   When I plug it in, there is nothing logged in messages.  lsusb 
> locks up and I can't get out of it with Ctrl+C or even kill -9.  Same 
> problem with usbmodules and even lsmod.
> 
> If I unplug the usb drive, all these commands return to the shell, and I 
> am then able to run them again properly.  I don't think its a problem 
> with the drive because it works ok on a windows machine.  I also tried a 
> second drive, a flash memory stick, and had the same problems.
> 
> The USB controller is detected, lspci shows:
> 00:0f.2 USB Controller: Broadcom OSB4/CSB5 OHCI USB Controller (rev 05)
> 
> Its also detected upon boot up:
> dmesg | grep usb
> usbcore: registered new driver usbfs
> usbcore: registered new driver hub
> usbcore: registered new driver hiddev
> usbcore: registered new driver usbhid
> drivers/usb/input/hid-core.c: v2.0:USB HID core driver
> 
> When the drive is not plugged in, lsusb returns:
> Bus 001 Device 001: ID 0000:0000
> 
> Any ideas?
> 
> -Ryan
> 
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> http://lists.olug.org/mailman/listinfo/olug
> 

-- 
Jon H. Larsen  - relayer -at- levania -dot- org
Operations Manager, Omaha Linux Users Group - http://www.olug.org/
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