Benjamin Berg bd37360a21 hwdb: Permit unsetting power/persist for USB devices
The USB persist feature allows devices that can retain their state when
powered down to work across suspend/resume. This is in particular useful
for USB drives.

However, the persist feature can get in the way for devices that are
unable to retain their state when power is lost. An example of such
stateful devices are fingerprint readers where USB persist should be
disabled to ensure userspace can detect whether the USB device had a
power loss during system suspend.

This will initially be used by the libfprint autosuspend hwdb.

Closes: #20754
2021-09-21 20:28:10 +02:00
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Systemd

System and Service Manager

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