Lightware UCX-2x1-HC30 - Query the Host Alternate Mode Support; Query the Status of the Alternate Mode; Query the Port Data Role; Query the Port Power Role

 UCX series – User's Manual 89


Request and Response
ɯ  <ip><usb-c_port>
ɮ header: 200·OK
ɮ body: <altmode_support>
Parameters
Parameter Parameter description  
<usb-c_port> USB-C port number
U1-U2
USB-C port number
<altmode_support>
False
The host does not support the alternate mode.
True
The host supports the alternate mode.
Example
ɯ  
ɮ header: 200 OK
ɮ body: true

Request and Response #dpaltmode #alternatemode #displayportalternatemode
ɯ  <ip><usb-c_port>
ɮ header: 200·OK
ɮ body: <altmode_state>
Parameters
Parameter Parameter description  
<usb-c_port> USB-C port number
U1-U2
USB-C port number
<altmode_state>
N/A
None
DP
The host is not connected
DP Alt mode is not active
DP Alt mode is active.
Example
ɯ  
ɮ header: 200 OK
ɮ body: DP

Request and Response
ɯ  <ip><usb-c_port>
ɮ header: 200·OK
ɮ body: <data_role>
Parameters
Parameter
Parameter
description
 
<usb-c_port> USB-C port number
U1-U2
USB-C port number
<data_role>
N/A
DFP
UFP
No


build-up the connection (USB data transmission operates
after the data role swap)
Upstream Facing Port (usually a device)
Example
ɯ  
ɮ header: 200 OK
ɮ body: UFP

Request and Response #power
ɯ  <ip><usb-c_port>
ɮ header: 200·OK
ɮ body: <power_role>
Parameters
Parameter Parameter description  
<usb-c_port> USB-C port number
U1-U2
USB-C port number
<power_role>
N/A
Sink
Source
No information about the power role.


Example
ɯ  
ɮ header: 200 OK
ɮ body: Source
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