Querying The 5V Overcurrent State Of A Usb Peripheral - Lightware MMX4x2-HDMI User Manual

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7. LW3 Programmers' Reference
7.17.5. Querying the 5V Overcurrent State of a USB Peripheral
When a connected USB peripheral needs more current via the USB A-type port than allowed (e.g. because
of a malfunction or a hardware-error), certain integrated circuits may got damaged. At this time, a special
property is changed in the LW3 tree to avoid such situations:

INFO: The limit of the overcurrent is 1A.
Command and Response
GET·/MEDIA/USB/USBSWITCH.<device_cur>
ç
pr·/MEDIA/USB/USBSWITCH.<device_cur>=<status>
æ
Parameters
Parameter Parameter description
<device_cur> The overcurrent
property of the USB
port
<status> The overcurrent state
of the USB peripheral
Example
ç GET /MEDIA/USB/USBSWITCH.Device5vOverCurrent2
æ pr /MEDIA/USB/USBSWITCH.Device5vOverCurrent2=false
Value Value description
Device5vOverCurrent1
Device5vOverCurrent2
Device5vOverCurrent3
Device5vOverCurrent4
Overcurrent is detected
true
Overcurrent is not detected
false
Applied firmware package: v1.5.0b8 | LDC software: v2.3.0b1
MMX4x2 series – User's Manual 103