/sys/devices/pci0000:00/0000:00:03.0/sound/card0/pcmC0D9p
Directories:

• /sys/devices/pci0000:00/0000:00:03.0/sound/card0
• /sys/devices/pci0000:00/0000:00:03.0/sound/card0/pcmC0D9p/power
• /sys/devices/pci0000:00/0000:00:03.0/sound/card0
• /sys/class/sound

Files:

• uevent
• dev
• pcm_class