Re: Loginwindow crash on usb audio device plug/unplug
Re: Loginwindow crash on usb audio device plug/unplug
- Subject: Re: Loginwindow crash on usb audio device plug/unplug
- From: Dave Koziol <email@hidden>
- Date: Wed, 03 Jul 2002 22:08:58 -0400
From: Jeff Moore <email@hidden>
On Wednesday, July 3, 2002, at 06:42 AM, Dave Koziol wrote:
Several very popular USB WebCams with USB Audio support are causing
loginwindow to crash when the are plugged in or unplugged. The crash
happens in a call to CFStringCompare in
HALComponentHelper::DeviceIsNowAvailable(), which is part of a
XIOAudioDeviceManager::NotificationThread. This is logged in RADAR as
# 2973082.
I'm wondering if anyone can tell me what string the HALComponentHelper
is trying to use? I'm wondering if I can stop using the
AppleUSBAudio.kext, and replace it with my own kext which sets
whatever string is missing, to make this crash go away.
This is a bug in the new Sound Manager in the QuickTime 6 Public
Preview. The quick work-around is to uninstall QT6. The harder
work-around would be to replace the QT6 Sound Manager pieces with the
originals.
Ok, that's good to know, but it doesn't answer my real question.
As the developer of a driver for a product with lots of user complaining
about this bug, is there anything I can change that might provide a work
around for all of our users?
In other words, is there a string I can set in the registry for a kext? Is
there something I can change by replacing the AppleUSBAudio.kext with my
own code? What is the string which this code is trying to use?
Dave Koziol
VP of Engineering
IOXperts, Inc.
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