[Bug 48678] New: USB serial under .NET 4.0 enters into an infinite loop

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48678

            Bug ID: 48678
           Summary: USB serial under .NET 4.0 enters into an infinite loop
           Product: Wine
           Version: 5.0
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs at winehq.org
          Reporter: forum at abtelecom.ro
      Distribution: ---

Created attachment 66531
  --> https://bugs.winehq.org/attachment.cgi?id=66531
WineHQ LokProgrammer5 using USB to SERIAL

Hi,

I'm trying to run ESU LokProgrammer5 under Wine 5.0.
Seems that when it wants to read from the serial port is entering into an
infinite loop.

OS: Debian Bullseye
Kernel: 5.4.0-4-amd64 #1 SMP Debian 5.4.19-1 (2020-02-13) x86_64 GNU/Linux
WineHQ: 5.0
DOS Devices: 
$ ls .wine/dosdevices/ -l
total 8
lrwxrwxrwx 1 adrian adrian 10 Dec  1 12:50 c: -> ../drive_c
lrwxrwxrwx 1 adrian adrian 10 Feb 27 00:07 com1 -> /dev/ttyS0
lrwxrwxrwx 1 adrian adrian 10 Feb 27 00:07 com2 -> /dev/ttyS1
lrwxrwxrwx 1 adrian adrian 10 Feb 27 00:07 com3 -> /dev/ttyS2
lrwxrwxrwx 1 adrian adrian 10 Feb 27 00:07 com4 -> /dev/ttyS3
lrwxrwxrwx 1 adrian adrian 62 Feb 27 00:07 com5 ->
/dev/serial/by-id/usb-FTDI_FT232R_USB_UART_A506V8O5-if00-port0
lrwxrwxrwx 1 adrian adrian 81 Feb 27 00:07 com6 ->
/dev/serial/by-id/usb-Prolific_Technology_Inc._USB-Serial_Controller_D-if00-port0
lrwxrwxrwx 1 adrian adrian 12 Feb 27 00:07 com7 -> /dev/ttyUSB0
lrwxrwxrwx 1 adrian adrian 12 Feb 27 00:07 com8 -> /dev/ttyUSB1
lrwxrwxrwx 1 adrian adrian 14 Dec  1 12:50 d:: -> /dev/mmcblk0p1
lrwxrwxrwx 1 adrian adrian 12 Dec  1 12:50 e:: -> /dev/mmcblk0
lrwxrwxrwx 1 adrian adrian  1 Dec  1 12:50 z: -> /

Logs are made with "WINEDEBUG=+comm wine drive_c/Program\ Files\
\(x86\)/LokProgrammer5/LokProgrammer.exe" using COM5 and COM6.
I've test the COM ports with PuTTY.EXE and they work ok, but under this
software are not working.

Kind regards,
Adrian

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