On Mon, Mar 11, 2002, Greg KH <[EMAIL PROTECTED]> wrote: > Since the latest USB patch went in that added a proper delay to the > hub connection sequence, a lot of people have been reporting odd > problems with some USB hubs, keyboards, and mice. I've seen this > problem too. It is usually fixed by just replugging the device in, but > not all of the time. > > The reason seems to be that usbmodules is getting called from the > hotplug package at the same time the hub driver is talking to the > device. Since we don't have control endpoint locking in the kernel USB > code yet, this messes things up :) > > The patch below, from Olaf Hering, seems to fix the problem. Also just > removing the usbmodules binary seems to fix it for other people, but > that's not really a good fix.
The hub driver doesn't talk to devices, so I'll assume you mean the hub thread, which is actually calling the core for enumeration (setting address, fetching descriptors, etc) But the enumeration should be finished by the time the hotplug stuff finishes. In that case, nothing should be stomping over each other. Is it that devices don't like how quickly we let the driver talk to it after enumeration? JE _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
