honeycrisp/unimem/experiments/dext_iosurface_pa/dext/Info.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<!--
  Info.plist for CybMemDriver DEXT

  IOKit matching personality:
  - IOProviderClass: IOUserService  (generic provider for user-initiated DEXTs)
  - IOUserClass: CybMemDriver      (our DriverKit class name)
  - IOUserServerName: com.cyb.CybMemDriver  (must match the code-signing identifier)
  - IOClass: IOUserUserClient       (kernel-side proxy for DriverKit user clients)

  The matching system finds our IOService parent (IOUserService),
  which then instantiates CybMemDriver in the DriverKit userspace runtime.

  For a DEXT user client, the typical pattern:
    1. A parent IOService personality matches and loads
    2. When userspace calls IOServiceOpen(), NewUserClient() creates our IOUserClient
    3. Or for simple setups, we match directly on IOUserService

  This Info.plist supports both development (manual load) and installed operation.
-->
<plist version="1.0">
<dict>
    <!-- Bundle metadata -->
    <key>CFBundleDevelopmentRegion</key>
    <string>en</string>
    <key>CFBundleExecutable</key>
    <string>CybMemDriver</string>
    <key>CFBundleIdentifier</key>
    <string>com.cyb.CybMemDriver</string>
    <key>CFBundleInfoDictionaryVersion</key>
    <string>6.0</string>
    <key>CFBundleName</key>
    <string>CybMemDriver</string>
    <key>CFBundlePackageType</key>
    <string>DEXT</string>
    <key>CFBundleShortVersionString</key>
    <string>1.0</string>
    <key>CFBundleVersion</key>
    <string>1</string>

    <!-- DriverKit minimum version -->
    <key>OSBundleMinimumDriverKitVersion</key>
    <string>20.0</string>

    <!-- IOKit Matching Personalities -->
    <key>IOKitPersonalities</key>
    <dict>
        <!--
          "CybMemDriver" personality:
          This tells IOKit how to match and instantiate our DEXT.
        -->
        <key>CybMemDriver</key>
        <dict>
            <!-- Kernel class: IOUserService is the generic entry point for DEXTs -->
            <key>IOClass</key>
            <string>IOUserService</string>

            <!--
              IOUserClass: the DriverKit class to instantiate.
              Must exactly match the class name in CybMemDriver.iig.
            -->
            <key>IOUserClass</key>
            <string>CybMemDriver</string>

            <!--
              IOProviderClass: what we match against in the IORegistry.
              IOResources is the "root" provider for software-only services.
            -->
            <key>IOProviderClass</key>
            <string>IOResources</string>

            <!--
              IOMatchCategory: allows multiple personalities to match
              on the same provider.
            -->
            <key>IOMatchCategory</key>
            <string>CybMemDriver</string>

            <!--
              IOResourceMatch: match when IOKit is ready.
              IOBSD is available once BSD subsystem is up (always true in practice).
            -->
            <key>IOResourceMatch</key>
            <string>IOBSD</string>

            <!--
              IOUserServerName: identifies the DEXT server process.
              Must match the signing identity / bundle ID.
            -->
            <key>IOUserServerName</key>
            <string>com.cyb.CybMemDriver</string>

            <!--
              UserClientProperties: describes the IOUserClient subclass
              that gets created when a userspace app calls IOServiceOpen().
            -->
            <key>UserClientProperties</key>
            <dict>
                <key>IOClass</key>
                <string>IOUserUserClient</string>
                <key>IOUserClass</key>
                <string>CybMemDriver</string>
            </dict>

            <!--
              IOProbeScore: higher scores are preferred during matching.
              Default of 100 is fine for us.
            -->
            <key>IOProbeScore</key>
            <integer>100</integer>
        </dict>
    </dict>
</dict>
</plist>