+int mw_nval_operation(mwdevice_t *mwdevice, unsigned char operation, unsigned short identifier, unsigned char size, void *mdata)
+{
+ unsigned char data[32];
+
+ data[0] = (identifier & 0xff00) >> 8;
+ data[1] = (identifier & 0x00ff);
+ data[2] = size;
+ if (size > 0 && mdata != NULL)
+ memcpy((data+3), mdata, size);
+
+ if (operation == MW_NVAL_OPERATION_READ || operation == MW_NVAL_OPERATION_WRITE) {
+ return mw_send_frame(mwdevice, MW_NVAL_OPERATION, operation, data, 3+size);
+ } else
+ return -1;
+}
+