Rhoads Hollowell
USB Software Team
Apple Computer, Inc.
On Oct 18, 2005, at 3:17 PM, Alec Carlson wrote:
Dan,
Yes, the provider is closed. The same code gets run in both
routines. If I have willTerminate() enabled, then I comment out the
kIOMessageServiceIsTerminated message. If I have
kIOMessageServiceIsTerminated enabled then I comment out the
willTerminate() routine. In the kIOMessageServiceIsTerminated case,
my stop() routine gets called by the ioKit. In the willTerminate()
case, it doesn’t get called.
Alec
on 10/18/05 3:39 PM, Daniel Sumorok at email@hidden wrote:
Do you close the provider in your willTerminate()
method?
-Dan
--- Alec Carlson <email@hidden> wrote:
> I have both willTerminate() and message() functions in my USB
driver. I was
> under the impression that willTerminate() and didTerminate()
were the new
> (correct) way to trap device termination. The "old" way was to
look for
> kIOMessageServiceIsTerminated messages passed to the message()
routine. I was
> told that the kIOMessageServiceIsTerminated message was deprecated.
>
> If I handle the termination event in willTerminate() then my stop
() routine
> never gets called. If I #ifdef out the willTerminate() routine
and move the
> cleanup code into message(kIOMessageServiceIsTerminated) - the
exact same
> cleanup takes place but in this case my stop() routine does get
called. My
> stop() routine does some additional cleanup which is required to
allow the
> driver to be unloaded.
>
> Any idea why willTerminate() is preventing stop() from being
called ?
>
> Alec Carlson
>
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