On Wed, 18 Jul 2012, Oliver Neukum wrote: > On Wednesday 18 July 2012 10:21:27 Alan Stern wrote: > > On Wed, 18 Jul 2012, Oliver Neukum wrote: > > > > > > I have a question that reset-resume still can not resolve firmware > > > > problem? I think this depend on driver. right? > > > > > > Right, but this is not really useful information. We can infer from > > > a lack of support for reset_resume() that we must not cut power. > > > The reverse conclusion is invalid, unfortunately. > > > > Why? If the driver claims to support reset-resume then it must have a > > way to insure that firmware is reloaded when necessary. > > No, the device may morph. And we have generic drivers (btusb) that > support devices after another driver (ath3k) has uploaded firmware. True. This would be a case where unbinding the driver is the only safe way to go. Alan Stern -- 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
