Re: [Xen-devel] [PATCH 2/4] usb: Introduce Xen pvUSB frontend

[Oliver Neukum <oneukum@xxxxxxx>]

On Thu, 2015-02-26 at 14:35 +0100, Juergen Gross wrote:
> +
> +               /* reset completion */
> +               if ((info->ports[wIndex].status &
> USB_PORT_STAT_RESET) != 0 &&
> +                   time_after_eq(jiffies,
> info->ports[wIndex].timeout)) {
> +                       info->ports[wIndex].status |=
> +                               USB_PORT_STAT_C_RESET << 16;
> +                       info->ports[wIndex].status &=
> ~USB_PORT_STAT_RESET;
> +
> +                       if (info->devices[wIndex].status !=
> +                           USB_STATE_NOTATTACHED) {
> +                               info->ports[wIndex].status |=
> +                                       USB_PORT_STAT_ENABLE;
> +                               info->devices[wIndex].status =
> +                                       USB_STATE_DEFAULT;
> +                       }
> +
> +                       switch (info->devices[wIndex].speed) {
> +                       case USB_SPEED_LOW:
> +                               info->ports[wIndex].status |=
> +                                       USB_PORT_STAT_LOW_SPEED;
> +                               break;
> +                       case USB_SPEED_HIGH:
> +                               info->ports[wIndex].status |=
> +                                       USB_PORT_STAT_HIGH_SPEED;
> +                               break;
> +                       default:
> +                               break;
> +                       }
> +               }
> +
> +               ((u16 *)buf)[0] =
> cpu_to_le16(info->ports[wIndex].status);
> +               ((u16 *)buf)[1] =
> cpu_to_le16(info->ports[wIndex].status >> 16);

Why in two chunks?
        Regards
                Oliver
> +               break;


-- 
Oliver Neukum <oneukum@xxxxxxx>


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