1*ce21bfe6SPratyush AnandLink Layer Validation Device is a standard device for testing of Super 2*ce21bfe6SPratyush AnandSpeed Link Layer tests. These nodes are available in sysfs only when lvs 3*ce21bfe6SPratyush Ananddriver is bound with root hub device. 4*ce21bfe6SPratyush Anand 5*ce21bfe6SPratyush AnandWhat: /sys/bus/usb/devices/.../get_dev_desc 6*ce21bfe6SPratyush AnandDate: March 2014 7*ce21bfe6SPratyush AnandContact: Pratyush Anand <pratyush.anand@st.com> 8*ce21bfe6SPratyush AnandDescription: 9*ce21bfe6SPratyush Anand Write to this node to issue "Get Device Descriptor" 10*ce21bfe6SPratyush Anand for Link Layer Validation device. It is needed for TD.7.06. 11*ce21bfe6SPratyush Anand 12*ce21bfe6SPratyush AnandWhat: /sys/bus/usb/devices/.../u1_timeout 13*ce21bfe6SPratyush AnandDate: March 2014 14*ce21bfe6SPratyush AnandContact: Pratyush Anand <pratyush.anand@st.com> 15*ce21bfe6SPratyush AnandDescription: 16*ce21bfe6SPratyush Anand Set "U1 timeout" for the downstream port where Link Layer 17*ce21bfe6SPratyush Anand Validation device is connected. Timeout value must be between 0 18*ce21bfe6SPratyush Anand and 127. It is needed for TD.7.18, TD.7.19, TD.7.20 and TD.7.21. 19*ce21bfe6SPratyush Anand 20*ce21bfe6SPratyush AnandWhat: /sys/bus/usb/devices/.../u2_timeout 21*ce21bfe6SPratyush AnandDate: March 2014 22*ce21bfe6SPratyush AnandContact: Pratyush Anand <pratyush.anand@st.com> 23*ce21bfe6SPratyush AnandDescription: 24*ce21bfe6SPratyush Anand Set "U2 timeout" for the downstream port where Link Layer 25*ce21bfe6SPratyush Anand Validation device is connected. Timeout value must be between 0 26*ce21bfe6SPratyush Anand and 127. It is needed for TD.7.18, TD.7.19, TD.7.20 and TD.7.21. 27*ce21bfe6SPratyush Anand 28*ce21bfe6SPratyush AnandWhat: /sys/bus/usb/devices/.../hot_reset 29*ce21bfe6SPratyush AnandDate: March 2014 30*ce21bfe6SPratyush AnandContact: Pratyush Anand <pratyush.anand@st.com> 31*ce21bfe6SPratyush AnandDescription: 32*ce21bfe6SPratyush Anand Write to this node to issue "Reset" for Link Layer Validation 33*ce21bfe6SPratyush Anand device. It is needed for TD.7.29, TD.7.31, TD.7.34 and TD.7.35. 34*ce21bfe6SPratyush Anand 35*ce21bfe6SPratyush AnandWhat: /sys/bus/usb/devices/.../u3_entry 36*ce21bfe6SPratyush AnandDate: March 2014 37*ce21bfe6SPratyush AnandContact: Pratyush Anand <pratyush.anand@st.com> 38*ce21bfe6SPratyush AnandDescription: 39*ce21bfe6SPratyush Anand Write to this node to issue "U3 entry" for Link Layer 40*ce21bfe6SPratyush Anand Validation device. It is needed for TD.7.35 and TD.7.36. 41*ce21bfe6SPratyush Anand 42*ce21bfe6SPratyush AnandWhat: /sys/bus/usb/devices/.../u3_exit 43*ce21bfe6SPratyush AnandDate: March 2014 44*ce21bfe6SPratyush AnandContact: Pratyush Anand <pratyush.anand@st.com> 45*ce21bfe6SPratyush AnandDescription: 46*ce21bfe6SPratyush Anand Write to this node to issue "U3 exit" for Link Layer 47*ce21bfe6SPratyush Anand Validation device. It is needed for TD.7.36. 48