[ltp] any successes with 2.5 inch laptop-IDE-drive USB
enclosures?
Tino Keitel
linux-thinkpad@linux-thinkpad.org
Thu, 27 Mar 2008 14:26:40 +0100
On Wed, Mar 26, 2008 at 12:40:59 -0600, Pablo Vera wrote:
> Since the 2.5 enclosures draw power from the USB port, I've found that
> sometimes one USB port is not enough to power up the drive, in which
> case I get a lot of errors. Some enclosures come with a Y split cable
> so that you can plug it into two USB ports. In this manner the
> enclosure will have double the power and will be able to power up the
> drive.
>
> Does your enclosure has a Y split cable ?, what is the power rating for
> the drive ?
>
> One USB port = 500 mA
> Two USB ports = 1000 mA = 1 Amp
AFAIK the limit is per hub, not per port. So as long as both ports are
on the same hub, you don't get a higher limit.
Regards,
Tino