hci1394_vendor_reg_write
status = hci1394_vendor_reg_write(soft_state->vendor,
status = hci1394_vendor_reg_write(vendor, 0, RIOREG_HOST_CONTROL,
status = hci1394_vendor_reg_write(vendor, 0, RIOREG_HOST_CONTROL,
int hci1394_vendor_reg_write(hci1394_vendor_handle_t vendor_handle,