Lines Matching refs:ports

558 capability to disable power to ports under some conditions.  Power is
567 VBUS may be maintained in the case where a hub gangs multiple ports into
568 a shared power well causing power to remain until all ports in the gang
569 are turned off.  VBUS may also be maintained by hub ports configured for
609 hub interface driver is unbound, control of its child ports is lost and all
632 In addition to these files some ports may have a 'peer' link to a port on
633 another hub.  The expectation is that all superspeed ports have a
639 Distinct from 'companion ports', or 'ehci/xhci shared switchover ports'
640 peer ports are simply the hi-speed and superspeed interface pins that
641 are combined into a single usb3 connector.  Peer ports share the same
648 1/ Port suspend is sequenced to guarantee that hi-speed ports are powered-off
691 		connectable. Examples are internal ports for USB
694 		expected to be safe to allow these ports to suspend
703 		empty internal ports, or ports that are not physically
709 		external hub ports which should be considered 'hotplug'
754 ports are enabled for poweroff.
756 The default configuration is that all ports start with
757 power/pm_qos_no_power_off set to '1' causing ports to always remain
760 Given confidence in the platform firmware's description of the ports
762 clear pm_qos_no_power_off for all 'not used' ports.  The same can be
763 done for 'hardwired' ports provided poweroff is coordinated with any
767 all ports (set <hubdev-portX>/power/pm_qos_no_power_off to '0') when
770 ports when the screen blanks, and re-power them when the screen becomes
771 active.  Smart phones and tablets may want to power off USB ports when