Re: setting property problem in audioengine
Re: setting property problem in audioengine
- Subject: Re: setting property problem in audioengine
- From: Brett George <email@hidden>
- Date: Wed, 04 Oct 2006 17:42:07 -0700
I was using IORegistryExplorer (v1.4.0 (57)).
You're right, ioreg(8) displays things correctly. Do I need to file this
as a bug?
Brett.
Jeff Moore wrote:
> How are you checking things?
>
> I have noticed that the IORegistryExplorer app in
> /Developer/Applications/Utilities occasionally doesn't display the
> correct keys for some of my stuff. Often, it'll have the same name as
> other keys. However, when I check the registry with my own code, I see
> the proper keys and values.
>
> I also think that ioreg(8) will show things properly, too.
>
> On Oct 4, 2006, at 4:00 PM, Brett George wrote:
>
>> I am seeing a strange problem when I try to set IORegistry properties in
>> my audio driver.
>>
>> If I have the following code:
>>
>> UInt32 n;
>>
>> n=0; setProperty("zero", n, sizeof(UInt32)*8);
>> n=2; setProperty("two", n, sizeof(UInt32)*8);
>> n=4; setProperty("four", n, sizeof(UInt32)*8);
>> n=8; setProperty("eight", n, sizeof(UInt32)*8);
>> n=16;setProperty("sixteen", n, sizeof(UInt32)*8);
>> n=32;setProperty("thirty_two", n, sizeof(UInt32)*8);
>>
>> OR
>>
>> UInt32 n;
>> OSNumber* nn;
>> nn=OSNumber::withNumber(n=0, sizeof(UInt32)*8); setProperty("zero_OS",
>> nn);
>> nn=OSNumber::withNumber(n=2, sizeof(UInt32)*8); setProperty("two_OS",
>> nn);
>> nn=OSNumber::withNumber(n=4, sizeof(UInt32)*8); setProperty("four_OS",
>> nn);
>> nn=OSNumber::withNumber(n=8, sizeof(UInt32)*8);
>> setProperty("eight_OS", nn);
>> nn=OSNumber::withNumber(n=16, sizeof(UInt32)*8);
>> setProperty("sixteen_OS", nn);
>> nn=OSNumber::withNumber(n=32, sizeof(UInt32)*8);
>> setProperty("thirty_two_OS", nn);
>>
>>
>> The properties thirty_two, sixteen and eight is set correctly to 32, 16
>> and 8 respectively.
>>
>> However, the property four is appearing with the key "2". the property
>> "two" is appearing with the key "1" and the property "one" is appearing
>> with the key "0". The zero property isn't appearing at all.
>>
>> I'm not sure if there is some reason I can
>
>
> --
> Jeff Moore
> Core Audio
> Apple
>
>
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