Re: [PATCH] usb-storage: Add quirk to defeat Kindle's automatic unload

[Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>]

On Thu, Mar 18, 2021 at 02:50:13PM +0100, Tomasz Torcz wrote:
> Dnia Wed, Mar 17, 2021 at 03:06:54PM -0400, Alan Stern napisał(a):
> > Matthias reports that the Amazon Kindle automatically removes its
> > emulated media if it doesn't receive another SCSI command within about
> > one second after a SYNCHRONIZE CACHE.  It does so even when the host
> > has sent a PREVENT MEDIUM REMOVAL command.  The reason for this
> > behavior isn't clear, although it's not hard to make some guesses.
> 
>   Could Kindle be fixed not to required such workaround? Is there a way
> to open a bug with Amazon?

You really should be asking people who work for Amazon.  I suspect that 
nobody who regularly reads this mailing list knows the answer.

(If you look through the MAINTAINERS file, you'll find there are a few 
kernel developers who do work for Amazon, or at least, have @amazon.com 
email addresses.  Try asking some of them.)

But even if the Kindle firmware gets changed (which I doubt will 
happen), we would still want to support all the old devices that aren't 
running the updated firmware.

Alan Stern
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