Re: [PATCH] usb: gadget: Add uevent to notify userspace

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On Thu, Sep 22, 2016 at 06:53:12PM +0800, Baolin Wang wrote:
> From: Badhri Jagan Sridharan <Badhri@xxxxxxxxxx>
> 
> Some USB managament on userspace (like Android system) rely on the uevents
> generated by the composition driver to generate user notifications. Thus this
> patch adds uevents to be generated whenever USB changes its state: connected,
> disconnected, configured.
> 
> The original code was created by Badhri Jagan Sridharan, and I did some
> optimization.
> 
> CC: Badhri Jagan Sridharan <Badhri@xxxxxxxxxx>
> Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxx>

If you're sending a patch someone else wrote you need their
Signed-off-by - if they didn't provide one you need to talk to them
about that and get it.

> +config USB_CONFIGFS_UEVENT
> +	boolean "Uevent notification of Gadget state"
> +	depends on USB_CONFIGFS
> +	help
> +	  Enable uevent notifications to userspace when the gadget
> +	  state changes. The gadget can be in any of the following
> +	  three states: "CONNECTED/DISCONNECTED/CONFIGURED"

Why not just generate the events unconditionally?

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