On Wed, 5 Mar 2014, Dan Williams wrote: > 8<------- > Subject: usb: assign usb3 external hub port peers > > From: Dan Williams <dan.j.williams@xxxxxxxxx> > > Given that root hub port peers are already established, external hub peer > ports can be determined by traversing the device topology: > > 1/ ascend to the parent hub and find the upstream port_dev > > 2/ walk ->peer to find the peer port > > 3/ descend to the peer hub via ->child > > 4/ find the port with the matching port id > > Note that this assumes the port labeling scheme required by the > specification [1]. > > [1]: usb3 3.1 section 10.3.3 > > Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx> Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> -- 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
