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Link Layer Validation Device is a standard device for testing of Super Speed Link Layer tests. These nodes are available in sysfs only when lvs driver is bound with root hub device. What: /sys/bus/usb/devices/.../get_dev_desc Date: March 2014 Contact: Pratyush Anand <pratyush.anand@gmail.com> Description: Write to this node to issue "Get Device Descriptor" for Link Layer Validation device. It is needed for TD.7.06. What: /sys/bus/usb/devices/.../u1_timeout Date: March 2014 Contact: Pratyush Anand <pratyush.anand@gmail.com> Description: Set "U1 timeout" for the downstream port where Link Layer Validation device is connected. Timeout value must be between 0 and 127. It is needed for TD.7.18, TD.7.19, TD.7.20 and TD.7.21. What: /sys/bus/usb/devices/.../u2_timeout Date: March 2014 Contact: Pratyush Anand <pratyush.anand@gmail.com> Description: Set "U2 timeout" for the downstream port where Link Layer Validation device is connected. Timeout value must be between 0 and 127. It is needed for TD.7.18, TD.7.19, TD.7.20 and TD.7.21. What: /sys/bus/usb/devices/.../hot_reset Date: March 2014 Contact: Pratyush Anand <pratyush.anand@gmail.com> Description: Write to this node to issue "Reset" for Link Layer Validation device. It is needed for TD.7.29, TD.7.31, TD.7.34 and TD.7.35. What: /sys/bus/usb/devices/.../u3_entry Date: March 2014 Contact: Pratyush Anand <pratyush.anand@gmail.com> Description: Write to this node to issue "U3 entry" for Link Layer Validation device. It is needed for TD.7.35 and TD.7.36. What: /sys/bus/usb/devices/.../u3_exit Date: March 2014 Contact: Pratyush Anand <pratyush.anand@gmail.com> Description: Write to this node to issue "U3 exit" for Link Layer Validation device. It is needed for TD.7.36. |