Lines Matching refs:ports

546 capability to disable power to ports under some conditions.  Power is
555 VBUS may be maintained in the case where a hub gangs multiple ports into
556 a shared power well causing power to remain until all ports in the gang
557 are turned off.  VBUS may also be maintained by hub ports configured for
597 hub interface driver is unbound, control of its child ports is lost and all
620 In addition to these files some ports may have a 'peer' link to a port on
621 another hub.  The expectation is that all superspeed ports have a
627 Distinct from 'companion ports', or 'ehci/xhci shared switchover ports'
628 peer ports are simply the hi-speed and superspeed interface pins that
629 are combined into a single usb3 connector.  Peer ports share the same
636 1/ Port suspend is sequenced to guarantee that hi-speed ports are powered-off
679 		connectable. Examples are internal ports for USB
682 		expected to be safe to allow these ports to suspend
691 		empty internal ports, or ports that are not physically
697 		external hub ports which should be considered 'hotplug'
742 ports are enabled for poweroff.
744 The default configuration is that all ports start with
745 power/pm_qos_no_power_off set to '1' causing ports to always remain
748 Given confidence in the platform firmware's description of the ports
750 clear pm_qos_no_power_off for all 'not used' ports.  The same can be
751 done for 'hardwired' ports provided poweroff is coordinated with any
755 all ports (set <hubdev-portX>/power/pm_qos_no_power_off to '0') when
758 ports when the screen blanks, and re-power them when the screen becomes
759 active.  Smart phones and tablets may want to power off USB ports when