Date: Wed, 16 Jan 2008 14:05:57 +0100 From: Bernd Walter <ticso@cicely12.cicely.de> To: Torfinn Ingolfsen <torfinn.ingolfsen@broadpark.no> Cc: freebsd-usb@freebsd.org Subject: Re: USB Slave mode - FreeBSD emulate a CDROM device? Message-ID: <20080116130556.GS79270@cicely12.cicely.de> In-Reply-To: <20080114192634.a46ca603.torfinn.ingolfsen@broadpark.no> References: <683E901E-8564-49FF-B177-754EF48232A4@gmail.com> <20080112115132.GI79270@cicely12.cicely.de> <20080113161713.4632c32e.torfinn.ingolfsen@broadpark.no> <20080113.090155.199374899.imp@bsdimp.com> <20080114192634.a46ca603.torfinn.ingolfsen@broadpark.no>
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On Mon, Jan 14, 2008 at 07:26:34PM +0100, Torfinn Ingolfsen wrote: > On Sun, 13 Jan 2008 09:01:55 -0700 (MST) > "M. Warner Losh" <imp@bsdimp.com> wrote: > > > Because the usb hardware doesn't support it. USB is a unidirectional > > tree. PC Hardware is the top end of the tree. It can't be downstream > > in the tree. > > It is good to have this infoformation confirmed. That way we avoid > theses questions in the future. There is something special named USB On-The-Go, but this is basicly just a USB device and USB host sharing the same connector. The intention is attach picture cameras directly to printers and such. But practically it is better to have different connectors of course and only sensefull if you don't have enough space for both connectors. -- B.Walter http://www.bwct.de http://www.fizon.de bernd@bwct.de info@bwct.de support@fizon.de
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