Directory listing for /sys/bus/acpi/devices/MSFT1000:00/99221fa0-24ad-11e2-be98-001aa01bbf6e/subsystem/drivers/hv_utils/2dd1ce17-079e-403c-b352-a1921ee207ee/driver/fd149e91-82e0-4a7d-afa6-2a4166cbd7c0/channels/