WSPI_CMD_BYTE_LENGTH_OFFSET
*cmd |= (len << WSPI_CMD_BYTE_LENGTH_OFFSET) & WSPI_CMD_BYTE_LENGTH;
*cmd |= (len << WSPI_CMD_BYTE_LENGTH_OFFSET) & WSPI_CMD_BYTE_LENGTH;
*cmd |= (chunk_len << WSPI_CMD_BYTE_LENGTH_OFFSET) &
*cmd |= (chunk_len << WSPI_CMD_BYTE_LENGTH_OFFSET) &