IOMedia filter
IOMedia filter
- Subject: IOMedia filter
- From: Eric Long <email@hidden>
- Date: Fri, 08 Jun 2007 15:33:20 -0700
- Thread-topic: IOMedia filter
I'm looking at writing an IOMedia filter. This is pretty new to me. I have
a couple of questions I hope are not too ambitious.
Before attaching my childMedia object to the driver in my start() method, I
may need to talk to a userland agent.
- Can I do that from within the start method? Will I have time-out issues?
I'd like to communicate information to identify the volume being mounted to
my agent, like the volume's UUID, display name, and such.
- Can I get this information at this point in the kernel?
I saw a kIOMediaUUIDKey, but when I try to get that property, I get back
NULL. Maybe its not available yet in start()? I don't see a key for the
display name of the volume/partition.
Thanks for any advice,
Eric
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