> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Steve > Calfee > Sent: Wednesday, March 01, 2006 2:21 PM > To: [EMAIL PROTECTED] > Cc: linux-usb-devel@lists.sourceforge.net > Subject: RE: [linux-usb-devel] Re: Question about OTG operations > > >On Tuesday 28 February 2006 7:44 pm, Li Yang-r58472 wrote: > > > Thanks Dave, > > > > > > So the current application of HNP is only to correct wrongly connected > >cable? > > > >That's not what I said, but it _is_ the only scenario that's completely > >spelled out in the specs. > > > > One other really useful aspect of OTG is power. If you have a battery > powered device connecting to another powered device it is useful to have the > A end pointed at the powered device. > > So for instance if you have a battery powered PC and wish to connect it to a > powered printer or a display device it would be nice if the A connector goes > into the "peripheral" and the b into the "computer" that way the computer > would get power and the device could hand off the awesome responsibility of > knowing what to do to the computer. That will need the user to plug the cable _correctly_. HNP won't change the responsibility of power supply to the bus. Is it a drawback of current OTG spec? > > Regards, Steve > > > > > ------------------------------------------------------- > This SF.Net email is sponsored by xPML, a groundbreaking scripting language > that extends applications into web and mobile media. Attend the live webcast > and join the prime developer group breaking into this new coding territory! > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 > _______________________________________________ > linux-usb-devel@lists.sourceforge.net > To unsubscribe, use the last form field at: > https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
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