host_to_us
struct us_data *us = host_to_us(dev_to_shost(starget->dev.parent));
struct us_data *us = host_to_us(srb->device->host);
struct us_data *us = host_to_us(srb->device->host);
struct us_data *us = host_to_us(srb->device->host);
struct us_data *us = host_to_us(srb->device->host);
struct us_data *us = host_to_us(host);
struct us_data *us = host_to_us(host);
struct us_data *us = host_to_us(sdev->host);
struct us_data *us = host_to_us(sdev->host);
*pus = us = host_to_us(host);