# $ udevadm monitor --kernel --subsystem-match=sound
# KERNEL[2082.099348] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.1/sound/card1 (sound)
# KERNEL[2082.099631] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.1/sound/card1/controlC1 (sound)
# KERNEL[2082.099831] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.1/sound/card1/pcmC1D0p (sound)
# KERNEL[2082.100122] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.1/sound/card1/pcmC1D0c (sound)
# KERNEL[2082.149885] change   /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.1/sound/card1 (sound)

SUBSYSTEM!="sound", GOTO="my_psvr_end"
ACTION!="add", GOTO="my_psvr_end"

DEVPATH=="/devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.1/sound/card?", ATTR{id}="PSVR"

LABEL="my_psvr_end"