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  1. Qt
  2. QTBUG-32684

QSerialPortInfo returns empty VID/PID for USB Huawei 3G Modem

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P1: Critical
    • Resolution: Done
    • Affects Version/s: 4.8.5, 5.1.0
    • Fix Version/s: 5.1.1, 5.2.0
    • Component/s: Serial Port
    • Labels:
      None
    • Environment:
      Windows XP/Vista/7/8

      Description

      The Hardware ID property of USB huawei 3G modem in registry has these items:

      USB\Vid_12D1&Subclass_01&Prot_02
      USB\VID_12D1&PID_1506&REV_0000&MI_03
      USB\VID_12D1&PID_1506&MI_03

      From this list we can see that the first line (which uses the class QSerialPortInfo) has not complete set of interesting prefixes of VID and PID (i.e. there is only VID a prefix) that leads to return of empty value.

      Note: This report is the second part from the report:

      https://bugreports.qt-project.org/browse/QTBUG-32018

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            People

            Assignee:
            lpapp Laszlo Papp
            Reporter:
            kuzulis Denis Shienkov
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              Dates

              Created:
              Updated:
              Resolved:

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