On Wed, 2013-09-18 at 20:56 +0200, Bjørn Mork wrote: > Oliver Neukum <oneukum@xxxxxxx> wrote: > >No, USB 3.0 uses no companion controllers, so you can have devices > >of any speed connected to it. > > > > Ah, right. I don't own such modern hardware, but I should have known this anyway. > > This still doesn't change the fact that the driver is brand new for brand new devices. I believe we should assume such devices will support ZLPs unless we have documentation stating anything else. For such devices we might assume it. But how does that matter for generic code? As any kind of device may be connected to XHCI, the sg code is relevant for every driver. And I certainly don't want trouble for older devices' drivers converted to sg. Regards Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
