61 lines
2.2 KiB
Plaintext
61 lines
2.2 KiB
Plaintext
Link Layer Validation Device is a standard device for testing of Super
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Speed Link Layer tests. These nodes are available in sysfs only when lvs
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driver is bound with root hub device.
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What: /sys/bus/usb/devices/.../get_dev_desc
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Date: March 2014
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Contact: Pratyush Anand <pratyush.anand@gmail.com>
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Description:
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Write to this node to issue "Get Device Descriptor"
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for Link Layer Validation device. It is needed for TD.7.06.
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What: /sys/bus/usb/devices/.../u1_timeout
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Date: March 2014
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Contact: Pratyush Anand <pratyush.anand@gmail.com>
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Description:
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Set "U1 timeout" for the downstream port where Link Layer
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Validation device is connected. Timeout value must be between 0
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and 127. It is needed for TD.7.18, TD.7.19, TD.7.20 and TD.7.21.
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What: /sys/bus/usb/devices/.../u2_timeout
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Date: March 2014
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Contact: Pratyush Anand <pratyush.anand@gmail.com>
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Description:
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Set "U2 timeout" for the downstream port where Link Layer
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Validation device is connected. Timeout value must be between 0
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and 127. It is needed for TD.7.18, TD.7.19, TD.7.20 and TD.7.21.
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What: /sys/bus/usb/devices/.../hot_reset
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Date: March 2014
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Contact: Pratyush Anand <pratyush.anand@gmail.com>
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Description:
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Write to this node to issue "Reset" for Link Layer Validation
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device. It is needed for TD.7.29, TD.7.31, TD.7.34 and TD.7.35.
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What: /sys/bus/usb/devices/.../u3_entry
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Date: March 2014
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Contact: Pratyush Anand <pratyush.anand@gmail.com>
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Description:
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Write to this node to issue "U3 entry" for Link Layer
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Validation device. It is needed for TD.7.35 and TD.7.36.
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What: /sys/bus/usb/devices/.../u3_exit
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Date: March 2014
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Contact: Pratyush Anand <pratyush.anand@gmail.com>
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Description:
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Write to this node to issue "U3 exit" for Link Layer
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Validation device. It is needed for TD.7.36.
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What: /sys/bus/usb/devices/.../enable_compliance
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Date: July 2017
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Description:
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Write to this node to set the port to compliance mode to test
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with Link Layer Validation device. It is needed for TD.7.34.
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What: /sys/bus/usb/devices/.../warm_reset
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Date: July 2017
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Description:
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Write to this node to issue "Warm Reset" for Link Layer Validation
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device. It may be needed to properly reset an xHCI 1.1 host port if
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compliance mode needed to be explicitly enabled.
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