Re: usb mass storage device emulation through usb port
Alan Stern <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Wed, 12 Sep 2007, Bgs wrote:
>
> Hi all,
>
> I'm looking for an answer regarding the following issue: is it
> possible to emulate a mass storage device through an ordinary USB port?
> For example 'export' an internal block device and make it appear like a
> usb drive for an external device (through some ordinary usb cable
> without any additional chips)?
>
> For example export a notebooks hdd for the desktop machine or alike...
It is not possible; special hardware is needed. An ordinary USB port
on a computer can act only as a host, never as a peripheral. You would
need to have a device port or an OTG ("On-The-Go") port, which can
adopt either role.
Alan Stern
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