[SRU] [J/Unstable/OEM-5.15/OEM-5.17] [PATCH 0/2] Power cycle USB ports on shutdown/reboot
kai.heng.feng at canonical.com
Wed Jun 1 13:02:21 UTC 2022
USB storage can be stuck in USB reset loop after reboot. More reboots
don't help the situation, unless it's re-plugged.
Power cycle USB ports on system shutdown/reboot.
The USB storage survived 300 times of reboots, and it works under each
[Where problems could occur]
One potential problem I can think of is S5 WoL over USB ethernet. Since
the port power and its associated ACPI power are turned off, WoL may
stop working, if WoL over USB is a thing.
Henry Lin (1):
xhci: stop polling roothubs after shutdown
Mathias Nyman (1):
UBUNTU: SAUCE: xhci: turn off port power in shutdown
drivers/usb/host/xhci-hub.c | 2 +-
drivers/usb/host/xhci.c | 25 +++++++++++++++++++++++--
drivers/usb/host/xhci.h | 2 ++
3 files changed, 26 insertions(+), 3 deletions(-)
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