ESXi 5.5 passthrough pci-e sound card

[Jan2000]

Have esxi 5.5. Try to passthrough pro audio card Lynx AES16e (PCI-e). Host see it as unknown multimedia device. When check the box to passthrough it and reboot nothing happened: the device still not ready to passthrough as befor reboot. Any chance to passthrough pro sound cards pci-e to VM?
I remember that when I had 5.1 U1 pasthrough of my AES16e works great. SO some problems with 5.5? Should downgrade?

 

[The_Moves]

Is it passing the correct Device ID through? I was able to get my Sound Blaster Z to passthrough successfully without issues to a Windows 7 VM, along with my GTX 465 modified into a Quadro 4000 - Played some BF4 with it

 

[gefatter]

I use Qemu-kvm for my win7 VM. I succesfully passed through my AMD 7870 and it is working properly in the vm. But when i try to passthrough the Sound Blaster Z i get the following error from qemu:

"qemu-system-x86_64: -device vfio-pci,host=0a:00.0,id=hostdev2,bus=pci.0,addr=0x4: vfio: failed to get group 10
qemu-system-x86_64: -device vfio-pci,host=0a:00.0,id=hostdev2,bus=pci.0,addr=0x4: Device initialization failed.
qemu-system-x86_64: -device vfio-pci,host=0a:00.0,id=hostdev2,bus=pci.0,addr=0x4: Device 'vfio-pci' could not be initialized
"
ok i do not use ESXi but maybe u can give me a hint?

Thank you!