IOServiceGetMatchingServices() doesn't find driver
IOServiceGetMatchingServices() doesn't find driver
- Subject: IOServiceGetMatchingServices() doesn't find driver
- From: "Brian Jorgage" <email@hidden>
- Date: Mon, 31 Jan 2005 17:12:35 -0500
I am following the example tutorial in "Writing an I/O Kit Device
Driver". I create a matching dictionary via IOServiceMatching
(myDriver). When I verify the contents of the dictionary the (only)
key-value pair is "IOProviderClass:<myDriver>".
Shouldn't the key part of this be "IOClass" rather
than "IOProviderClass" ? By using IOServiceMatching() it seems I am
locking myself in to using the "IOProviderClass" key.
If instead I use the call IOServiceMatching("AppleUSBComposite") to
find an Apple driver then IOServiceGetMatchingServices() still doesn't
find anything. However I know there are instances of AppleUSBComposite
which I can verify via IORegistryExplorer.
So what gives here ?
Brian Jorgage
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