[clue-tech] Fwd: Need a Linux device driver.

[Dennis J Perkins]

On Tue, 2008-10-28 at 21:16 -0600, Jed S. Baer wrote:
> On Tue, 28 Oct 2008 20:58:40 -0600
> David L. Anselmi wrote:
> 
> > dennisjperkins at comcast.net wrote:
> > > Re USB drives, I have read that Windows powers down the USB port when
> > > you tell it you want to remove the drive.  Linux unmounts it, but
> > > doesn't power down the port since USB devices can be safely plugged
> > > in and unplugged.
> > 
> > That may well be it (but how does the port power up when you plug back 
> > into it?)
> > 
> > So there's a utility I can use to spin down my USB hard drive.  I'll 
> > have to look for one to power down a USB port.
> 

I'm not sure how it works.  My first thought was that the port is powered down, 
but if that was true it should be impossible to detect anything that is plugged in 
afterwards.  I think that maybe the device is powered down, not the port.