Re: [PATCH v4 04/23] usb: add usb_otg_caps to usb_gadget structure.

[Roger Quadros <rogerq-l0cyMroinI0@public.gmane.org>]

On Wed, 17 Jun 2015 13:43:36 +0800
Li Jun <jun.li-KZfg59tc24xl57MIdRCFDg@public.gmane.org> wrote:

> From: Macpaul Lin <macpaul-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> 
> Add usb_otg_caps pointer to usb_gadget structure to indicate its
> otg capabilities.
> 
> Signed-off-by: Macpaul Lin <macpaul-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Signed-off-by: Li Jun <jun.li-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
> ---
>  include/linux/usb/gadget.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
> index 4f3dfb7..6b39087 100644
> --- a/include/linux/usb/gadget.h
> +++ b/include/linux/usb/gadget.h
> @@ -511,6 +511,7 @@ struct usb_gadget_ops {
>   * @dev: Driver model state for this abstract device.
>   * @out_epnum: last used out ep number
>   * @in_epnum: last used in ep number
> + * @otg_caps: OTG capabilities of this gadget.
>   * @sg_supported: true if we can handle scatter-gather
>   * @is_otg: True if the USB device port uses a Mini-AB jack, so that the
>   *	gadget driver must provide a USB OTG descriptor.
> @@ -559,6 +560,7 @@ struct usb_gadget {
>  	struct device			dev;
>  	unsigned			out_epnum;
>  	unsigned			in_epnum;
> +	struct usb_otg_caps		*otg_caps;

Why does this need to be a pointer?

>  
>  	unsigned			sg_supported:1;
>  	unsigned			is_otg:1;


cheers,
-roger
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