Need help injecting multiple compatible-ids (need DSDT expert)

[Chocoholic]

Hello everyone, in OS X 10.8.5+ pci detection has changed and thus faking device-ids via DSDT now requires compatible-id injection. This is usually easy when I have to inject a single id such as in the case of faking LPC device-id.

However, I'm trying to inject the compatible id of my Radeon HD5450 which is:

<"pci174b,e164", "pci1002,68e0", "pciclass,030000", "GFX0">

I'm having a hard time finding the correct syntax for injecting all those via a compatible-id entry in the DSDT.

Any help would be immensely appreciated

 

[RehabMan]

Hello everyone, in OS X 10.8.5+ pci detection has changed and thus faking device-ids via DSDT now requires compatible-id injection. This is usually easy when I have to inject a single id such as in the case of faking LPC device-id.

However, I'm trying to inject the compatible id of my Radeon HD5450 which is:

<"pci174b,e164", "pci1002,68e0", "pciclass,030000", "GFX0">

I'm having a hard time finding the correct syntax for injecting all those via a compatible-id entry in the DSDT.

Any help would be immensely appreciated

It actually only requires "name" in addition to the normal "device-id"...

So if you originally had:

"device-id",
Buffer(0x04) { 0xe0, 0x68, 0x00, 0x00 },

You now need:

"device-id",
Buffer(0x04) { 0xe0, 0x68, 0x00, 0x00 },
"name",
"pci1002,68e0"

In addition, this is only necessary for kexts that use IONameMatch...

 

[Chocoholic]

Thanks for clearing up that misunderstanding.

After checking the kexts, I found that I only needed to inject device-id (PCIMatch).

I added the following to the DSDT:

                                "device-id", 
                                Buffer (0x04)
                                {
                                    0xE0, 0x68, 0x00, 0x00
                                }, 


                                "ATY,DeviceID", 
                                Buffer (0x02)
                                {
                                    0xE0, 0x68
                                }, 


                                "vendor-id", 
                                Buffer (0x04)
                                {
                                    0x02, 0x10, 0x00, 0x00
                                }, 


                                "ATY,VendorID", 
                                Buffer (0x02)
                                {
                                    0x02, 0x10
                                },

With the previous code in DSDT, I'm now running my Radeon HD5450 with vanilla kexts

IORegistry shows the fake id in all sections except compatible which shows my original id.

Once again, thanks RehabMan