On Fri, 4 Nov 2016, Mathias Nyman wrote:
> Time to get this thing forward.
>
> Many USB-3 mass storage devices remount after "eject" or safe removal.
> Windows solves this by setting the device to U3, and we will do the same.
> This same info is all in the patch description.
>
> I am however touching the pm states of usb devices from usb core in this
> patch, and like to get some more eyes on that part.
> If a connected device is already suspended (U3) with remote wakeup enabled
> then we resume it, and disable remote wakeup before going back to U3.
>
> I'm not however able to test that part of the code since I don't have a USB-3
> device that would support remote wakeup. I'd like to get some feedback, or an
> ack from Alan about this approach before sending this patch forward.
I'll review the patch after I get back from the Linux Plumbers
conference.
Alan Stern
> Otherwise everything seems to work fine, mass storage devices don't re-appear
> automatically, unless physically disconnected and re-connected.
>
> -Mathias
>
> Mathias Nyman (1):
> usb: hub: Fix auto-remount of safely removed or ejected USB-3 devices
>
> drivers/usb/core/hub.c | 68
> +-
> 1 file changed, 17 insertions(+), 51 deletions(-)
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