Simple question about Pinconfig & DSDT patching

[mcsmart]

I just started with DSDT patching and pinconfig stuff. I successfully added the pinconfig for my ALC889A card to my DSDT. Now all the ports of the soundchip are being displayed correctly in System-Profiler.

 

Even though my card does show up in System-Profiler I do not get any sound (No audio devices in System Preferences). When I use the LegacyHDA.kext sound works fine. So my question is: do I still have to patch AppleHDA.kext? I thought that the DSDT pinconfig stuff would be enough...

 

Without LegacyHDA.kext AppeHDA.kext gets loaded, but prints some errors in dmesg.

 

 

Regards,

mcsmart

[Trauma!]

do I still have to patch AppleHDA.kext?

 

Yes and you ever will.

 

I successfully added the pinconfig for my ALC889A card to my DSDT.

 

That's useless all you need is to specify Layout-id and be sure to name you device as "Device (HDEF)"

 

Pinconfig and Pincomplex are managed from the plist, here is an example of a fully working piece of code to replace HDAEnabler :

 

Device (HDEF) <-- you need that
		{
			Name (_ADR, 0x001B0000) <-- this is hardware specific
			Method (_PRW, 0, NotSerialized)
			{
				Return (Package (0x02)
				{
					0x0D, 
					0x05
				})
			}

			Method (_DSM, 4, NotSerialized) <-- Injection method beginning
			{
				Store (Package (0x02)
					{
						"layout-id", <-- Only requeried injection value
						Buffer (0x04)
						{
							0x79, 0x03, 0x00, 0x00 <-- Choose the layout-id according to your plist
						},
					}, Local0)
				DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
				Return (Local0)
			} <-- Injection method ending
		}