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List:       linux-usb-devel
Subject:    Re: [linux-usb-devel] g_file_storage question
From:       Sean Bruno <sean.bruno () dsl-only ! net>
Date:       2006-01-30 22:34:05
Message-ID: 1138660445.3256.2.camel () home-desk
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On Mon, 2006-01-30 at 17:01 -0500, Alan Stern wrote:
> > I think that it is a serial transfer 'thingy', i.e. the Prolific cable.
> > It seems to be handled by a different driver now that I look at:
> > 
> > Jan 30 16:13:58 custserver kernel: usb 3-1: new full speed USB device
> > using uhci_hcd and address 2
> > Jan 30 16:13:58 custserver kernel: usb 3-1: configuration #1 chosen from
> > 1 choice
> > Jan 30 16:13:58 custserver kernel: usb0: register 'plusb' at
> > usb-0000:00:1d.3-1, Prolific PL-2301/PL-2302, d6:79:87:03:67:5e
> > Jan 30 16:13:58 custserver kernel: usbcore: registered new driver plusb
> > 
> > Would this cable even work to interconnect two PC's for the purposes of
> > seeing the mass storage device?
> 
> No more than any other serial connection would.  If you want to
> interconnect two PCs, you're probably better off using Ethernet.  Then you
> could share mass storage devices via NFS or iSCSI, and you could do lots
> more in addition (like remote login).
> 
Got it.  It's just a serial cable. :(

> > So...Is this even possible with the ICH5 USB controller?
> 
> No.  USB hardware comes in two distinctly different flavors: host and 
> peripheral.  The USB host controller hardware on your PC is not capable of 
> acting as a USB peripheral.
> 
> If that's really what you want to do, you can buy USB device controller 
> hardware.  There are PCI cards you can install in a PC that will act as a 
> USB peripheral.  See the descriptions on the www.linux-usb.org site.
> 
I see...Now I understand.  The piece I didn't quite understand was "two
different flavors" ... Time to visit the parts store!  Thanks for the
info.

Sean



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