pwc_get_u16_ctrl
r = pwc_get_u16_ctrl(pdev, GET_STATUS_CTL,
r = pwc_get_u16_ctrl(pdev, GET_STATUS_CTL,
ret = pwc_get_u16_ctrl(pdev, GET_STATUS_CTL,
int pwc_get_u16_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *dat);