Not Possible on MacOS 26

[jkcoxson]

Starting in MacOS 26, the Valeria interface now has the ioreg key value

"UsbUserClientEntitlementRequired" = "com.apple.coremedia.valeria.allow"

Attempting to claim the interface will return error code

./strerror -m 3758097086
(iokit/common) resource shortage

The console spits out

[binary name]@(null): AppleUSBHostUserClient::start: missing entitlement com.apple.coremedia.valeria.allow

It seems that Apple no longer allows a connection from non-Apple code.

[sbfkcel]

Is there any good way to get around it?

[nanoscopic]

Not that I could tell. I created a full alternative C++ implementation that does what quicktime_video_hack does and I hit the same brick wall.

Even turning off sip is insufficient to be able to do it. It is prevented now by amfi. If you are on a mac that can shut off amfi you can do it by using the bootargs amfi_get_out_of_my_way=1 , but otherwise this whole method of getting video is effectively dead on modern m1+ systems. And... on modern macs... you can't use that boot args to disable amfi.

Basically this kind of thing is only good on Linux now.

In theory you could also use a usb interposer board to accomplish that but those aren't exactly cheap and it's a pile of extra annoyance.

[HibariX]

I encountered the same problem that needs to be solved, the system version is macOS 26, if there is a solution, @ me, thank you very much.