Re: [linux-usb-devel] [FEATURE REQUEST] Transparent hot plugging of root file system on portable storage devices.



On Sun, 6 Jan 2008, Oliver Neukum wrote:

Am Sonntag 06 Januar 2008 schrieb Alan Stern:
What about people who want to suspend to RAM instead of hibernating and
_do_ want to unplug the USB device containing their root filesystem
while the machine is asleep?  In this case we will _know_ that the
power session has been interrupted, but USB Persist won't activate
because the host controller never lost power.

Would it be hard to force the persist feature on for a replugged device?

Right now the persist feature is enabled by a per-device boolean flag.
In theory the flag could accept 3 values: off, on if power was lost,
or on for any resume transition. This would not be a hard change.

Alan Stern

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