usbecm_ctrl_write
static int usbecm_ctrl_write(usbecm_state_t *ecmp, uchar_t request,
rval = usbecm_ctrl_write(ecmp, CDC_ECM_SET_ETH_PKT_FLT,
rval = usbecm_ctrl_write(ecmp, CDC_ECM_SET_ETH_PKT_FLT,
rval = usbecm_ctrl_write(ecmp, CDC_ECM_SET_ETH_PKT_FLT,
rval = usbecm_ctrl_write(ecmp, CDC_ECM_SET_ETH_PKT_FLT,