Kuebeker Posted February 17, 2014 Share Posted February 17, 2014 In DSDT, What is the "AAPL" and where does it come from? Link to comment https://www.insanelymac.com/forum/topic/296134-in-dsdt-what-is-the-aapl-and-where-does-it-come-from/ Share on other sites More sharing options...
RehabMan Posted February 17, 2014 Share Posted February 17, 2014 In DSDT, What is the "AAPL" and where does it come from? I don't think anyone knows exactly what you're asking about. AAPL is Apple's stock symbol on the NASDAQ stock market. Link to comment https://www.insanelymac.com/forum/topic/296134-in-dsdt-what-is-the-aapl-and-where-does-it-come-from/#findComment-1994902 Share on other sites More sharing options...
Maniac10 Posted February 17, 2014 Share Posted February 17, 2014 Are you talking about the prefix to some device properties found in ioreg? Like "AAPL,current-extra" and similar injected for extra USB current. Link to comment https://www.insanelymac.com/forum/topic/296134-in-dsdt-what-is-the-aapl-and-where-does-it-come-from/#findComment-1994912 Share on other sites More sharing options...
Gringo Vermelho Posted February 17, 2014 Share Posted February 17, 2014 I don't think anyone knows exactly what you're asking about. AAPL is Apple's stock symbol on the NASDAQ stock market. Anyone who has looked at an Apple DSDT knows what he's asking about. Link to comment https://www.insanelymac.com/forum/topic/296134-in-dsdt-what-is-the-aapl-and-where-does-it-come-from/#findComment-1994923 Share on other sites More sharing options...
Kuebeker Posted February 17, 2014 Author Share Posted February 17, 2014 Are you talking about the prefix to some device properties found in ioreg? Like "AAPL,current-extra" and similar injected for extra USB current. Yes that. "AAPL,xxxxxxxxx" Link to comment https://www.insanelymac.com/forum/topic/296134-in-dsdt-what-is-the-aapl-and-where-does-it-come-from/#findComment-1994930 Share on other sites More sharing options...
RehabMan Posted February 17, 2014 Share Posted February 17, 2014 Anyone who has looked at an Apple DSDT knows what he's asking about. I was asking him to clarify what the question actually was... The OP is not clear. As far as 'where AAPL comes from'... Clearly, it is an arbitrary string that Apple chooses to use because of the fact it is their stock ticker symbol. Link to comment https://www.insanelymac.com/forum/topic/296134-in-dsdt-what-is-the-aapl-and-where-does-it-come-from/#findComment-1994931 Share on other sites More sharing options...
Kuebeker Posted February 17, 2014 Author Share Posted February 17, 2014 What is it's function when used in DSDT._DMS? I have not seen the AAPL in any of Apple DSDT's and I'm questioning it's usefulness. Link to comment https://www.insanelymac.com/forum/topic/296134-in-dsdt-what-is-the-aapl-and-where-does-it-come-from/#findComment-1994935 Share on other sites More sharing options...
RehabMan Posted February 17, 2014 Share Posted February 17, 2014 What is it's function when used in DSDT._DMS? I have not seen the AAPL in any of Apple DSDT's and I'm questioning it's usefulness. I think you mean _DSM. The purpose of the _DSM injection is to place such properties into the ioreg where they can be read by drivers (kexts). Normally, such injections happen in Mac firmware, but doing EFI injections in the bootloader (GraphicsEnabler, EthernetBuiltIn, etc) or _DSM injections in ACPI allow normal PCs to set these properties as required. 1 Link to comment https://www.insanelymac.com/forum/topic/296134-in-dsdt-what-is-the-aapl-and-where-does-it-come-from/#findComment-1994938 Share on other sites More sharing options...
Kuebeker Posted February 21, 2014 Author Share Posted February 21, 2014 I understand the use of _DSM but from what I observed, adding "AAPL" as in "AAPL,some_parameter_name" does absolutely nothing for original Mac kext's. I have not seen a single post on AAPL's uses. I'll classify AAPL as snake-oil. Correction, APPL is precent in newer macs. My bad! Link to comment https://www.insanelymac.com/forum/topic/296134-in-dsdt-what-is-the-aapl-and-where-does-it-come-from/#findComment-1996144 Share on other sites More sharing options...
RehabMan Posted February 21, 2014 Share Posted February 21, 2014 I understand the use of _DSM but from what I observed, adding "AAPL" as in "AAPL,some_parameter_name" does absolutely nothing for original Mac kext's. I have not seen a single post on AAPL's uses. I'll classify AAPL as snake-oil. On what basis? As an example, to inject the platform ID used for HD4000/HD4600/etc, you inject "AAPL,ig-platform-id". The AAPL part is not optional. For HD3000, you inject a value for "AAPL,snb-platform-id" To avoid instant wake from sleep, you inject "AAPL,clock-id" on the USB node. To make graphics work with a dual-link LVDS cable, you inject "AAPL,DualLink". There are many more examples. Definitely not snake oil. I suggest you learn a bit more before making such false assertions. Note: These are just strings that identify properties, eventually retrieved by a driver using getProperty or getObject. They could have chosen anything (eg. "Apple", "Steve", "Jobs", "SJ", "Woz", "FooBar"), but chose to (sometimes) use their stock symbol as a prefix. Link to comment https://www.insanelymac.com/forum/topic/296134-in-dsdt-what-is-the-aapl-and-where-does-it-come-from/#findComment-1996153 Share on other sites More sharing options...
khe91 Posted February 21, 2014 Share Posted February 21, 2014 The screenshot is a IOReg from a original MacbookAir 2013. You can see AAPL all over it. A search for AAPL in the complete IOReg finds it in the graphic section, USB section, PCI subsystem, network subsystem etc. So Apple is using AAPL A LOT. Link to comment https://www.insanelymac.com/forum/topic/296134-in-dsdt-what-is-the-aapl-and-where-does-it-come-from/#findComment-1996170 Share on other sites More sharing options...
Kuebeker Posted February 21, 2014 Author Share Posted February 21, 2014 Oups! I forgot to update my list of current macs. I was looking at MacBookPro6,1 ioreg. Link to comment https://www.insanelymac.com/forum/topic/296134-in-dsdt-what-is-the-aapl-and-where-does-it-come-from/#findComment-1996236 Share on other sites More sharing options...
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