Am 28.06.2010 12:16, schrieb Christoph Hellwig: > On Mon, Jun 28, 2010 at 10:24:49AM +0200, Kevin Wolf wrote: >> How would breaking compatibility help us? For the user a USB MSD is only >> one device, so requiring two -device parameters sounds wrong. > > But it is separate devices. At least the standards compliant usb > storage devices just are a bride of scsi commands over usb and fit into > the SAM device model, which makes a difference between initiator, target > and LUN. So having a different device for the specific target vs the > initiator port makes a difference. (and yes, we're still totally missing > support for multiple luns, which would require another level of > devices). Trying to hide this is not all that useful - not anymore > useful than hiding it on a "normal" scsi host controller anyway.
Maybe we need something like composed devices? So when the user asks for a USB stick, he actually gets all devices that this stick internally uses? Otherwise it becomes really hard to use -device directly. I guess the same applies for mainboards, CPUs and probably some more things, though I don't really know how these are (planned to be) done in qdev. Kevin
