fix values of complex type's attributes

Hi,
I'm trying to write a schema to represent a list of items, all of the same
type. Each item needs to contain a given set of attributes, and the value
of these attributes for each item needs to be fixed in the schema.
For instance, the resulting XML would look something like this:

<myList>
  <item1 iName="foo" field1="fixedInt1" field2="fixedString1"/>
      <value>"value1"</value>
  <item2 iName="bar" field1="fixedInt2" field2="fixedString2"/>
      <value>"value2"</value>
  ...
</myList>

where item1, item2, etc. are of type "item" and iName, field1, and field2
are all specified by the schema in each case.
If I create a type "item" as follows, how do I set its attribute values in
my list? Is there an easier way to go about this?

...
<element name="myList" type="itemList"/>

<complexType name="item">
  <sequence>
    <element name="value" type="string" use="required"/>
  </sequence>
  <attribute name="iName" type="string"/>
  <attribute name="field1" type="int"/>
  <attribute name="field2" type="string"/>
</complexType>

<complexType name="itemList">
  <sequence>
     <element name="item1" type="item">
      ??? <!-- fix values for attributes here -->
     </element>
     <element name="item2" type="item">
      ??? <!-- fix values for attributes here -->
     </element>
     ...
  </sequence>
</complexType>

...

Thanks,

Brian Gabor