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Date:   Wed, 6 Oct 2021 02:41:15 +0200
From:   Andrew Lunn <andrew@lunn.ch>
To:     Rajat Jain <rajatxjain@gmail.com>
Cc:     Alan Stern <stern@rowland.harvard.edu>,
        Dmitry Torokhov <dtor@google.com>,
        Rajat Jain <rajatja@google.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Thinh Nguyen <Thinh.Nguyen@synopsys.com>,
        Mathias Nyman <mathias.nyman@linux.intel.com>,
        Chris Chiu <chris.chiu@canonical.com>,
        linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
        levinale@google.com, bleung@google.com, jsbarnes@google.com,
        pmalani@google.com
Subject: Re: [PATCH 2/2] usb: hub: Mark devices downstream a removable hub,
 as removable
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> AFAIK, the primary reason / use of this attribute was to distinguish
> devices that can be removed by the user, and really all such devices
> (at least the ones that matter to user) today sit either on PCI or USB
> bus.

Hard disk on SATA? You can hot plug them.

SFP modules on i2c?

I'm sure there are others, which are not PCI or USB.

     Andrew