1Link Layer Validation Device is a standard device for testing of Super
2Speed Link Layer tests. These nodes are available in sysfs only when lvs
3driver is bound with root hub device.
4
5What:		/sys/bus/usb/devices/.../get_dev_desc
6Date:		March 2014
7Contact:	Pratyush Anand <pratyush.anand@gmail.com>
8Description:
9		Write to this node to issue "Get Device Descriptor"
10		for Link Layer Validation device. It is needed for TD.7.06.
11
12What:		/sys/bus/usb/devices/.../u1_timeout
13Date:		March 2014
14Contact:	Pratyush Anand <pratyush.anand@gmail.com>
15Description:
16		Set "U1 timeout" for the downstream port where Link Layer
17		Validation device is connected. Timeout value must be between 0
18		and 127. It is needed for TD.7.18, TD.7.19, TD.7.20 and TD.7.21.
19
20What:		/sys/bus/usb/devices/.../u2_timeout
21Date:		March 2014
22Contact:	Pratyush Anand <pratyush.anand@gmail.com>
23Description:
24		Set "U2 timeout" for the downstream port where Link Layer
25		Validation device is connected. Timeout value must be between 0
26		and 127. It is needed for TD.7.18, TD.7.19, TD.7.20 and TD.7.21.
27
28What:		/sys/bus/usb/devices/.../hot_reset
29Date:		March 2014
30Contact:	Pratyush Anand <pratyush.anand@gmail.com>
31Description:
32		Write to this node to issue "Reset" for Link Layer Validation
33		device. It is needed for TD.7.29, TD.7.31, TD.7.34 and TD.7.35.
34
35What:		/sys/bus/usb/devices/.../u3_entry
36Date:		March 2014
37Contact:	Pratyush Anand <pratyush.anand@gmail.com>
38Description:
39		Write to this node to issue "U3 entry" for Link Layer
40		Validation device. It is needed for TD.7.35 and TD.7.36.
41
42What:		/sys/bus/usb/devices/.../u3_exit
43Date:		March 2014
44Contact:	Pratyush Anand <pratyush.anand@gmail.com>
45Description:
46		Write to this node to issue "U3 exit" for Link Layer
47		Validation device. It is needed for TD.7.36.
48