On Fri, Jan 23, 2004 at 11:12:00AM +0200, Juhana Sadeharju wrote:
> I simply don't understand why Linux cannot be programmed to fake
> an USB disk. Is USB designed so that the cable and the hardware
> has to be reversed if one reverses the connection direction?
> That is, a computer should have both in and out USB ports, and
> the cable must be switched from port to port.

You need different hardware to act like a USB device.  It is totally
different electronically.

> How sad. Why USB is limited that way? Does that limit possible USB
> applications?

No.

> What USB chips are used inside USB disk devices? What USB chips are
> used inside computers? If they are different kind of chips, then
> I understand the problem. But if they are of the same kind, then
> it would be only a matter of reprogramming the (Linux) driver for
> the chip.

They are different.

Sorry,

greg k-h


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