On Wed, 11 May 2011, Marc St-Jean wrote: > I'm trying to force a host to re-enumerate our device from the linux > g_ether\RNDIS side. Currently it appears to only do so if I unplug the > cable or drop VBUS on the cable. We can't do this as the user won't have > access to the cable in the completed system. As far as I know, g_ether doesn't have any method for doing this -- or any reason for doing it, either. Why do you want to force the host to re-enumerate a g_ether/RNDIS gadget? > Searching through the list I found the following. I've tried many > combinations but it's not clear to me exactly what names where to be > echoed and from which "controller". > > Also, I realize that the advice was for the host side with a hub and our > gadget port is direct connected. But can the same un/bind method be > used? The advice you found was for the host side; it is useless on the gadget side. There are a couple of things you could do. The easiest is to unload the gadget driver and then reload it a second or so later. For example, if you're using g_ether: rmmod g-ether sleep 1 modprobe g-ether Alternatively, if you can change the source code for the gadget driver and if your controller driver supports this, you can have the gadget driver call: usb_gadget_disconnect(gadget); ssleep(1); usb_gadget_connect(gadget); This is documented in include/linux/usb/gadget.h. 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
