Bent Bisballe Nyeng wrote: > We have a composite device that works like a USB HUB connecting to one > device at a time. > When a new connection is made the endpoints change although the device > connection itself is not changed.
What led you to think that was a legitimate thing to do? Once a driver has done a "set configuration", it's not clear that the endpoint configuration is allowed to change. You can certainly have multiple alternate settings, where each setting has a different set of endpoints, but I don't see how you can possibly expect an on-the-fly change to work. How would you notify the host that things have changed? You can't expect it to poll your descriptors repeatedly. The spec is a little ambiguous in this regard. It says, "Once configured, devices may support limited adjustments to the configuration. If a particular interface has alternate settings, an alternate may be selected after configuration." It is not clear whether they are saying that the alternate setting mechanism is the ONLY allowed adjustment. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ------------------------------------------------------------------------------ CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments & Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk _______________________________________________ libusbx-devel mailing list libusbx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libusbx-devel
