Could the code response to be that be if a USB identity cannot be found
on a call to it then either a USB enumeration is done or if that's not
possible (I don't know if that can be done from app code) then an error
gets thrown?
Just a thought so this kind of situation is handled gracefully?
Alan G0TLK
On 22/06/2021 10:26, runninge...@gmail.com wrote:
Hi,
This is an observation, not necessary a bug report, and as Bill pointed out
in one of the groups.io threads :
The root problem is that USB devices are "hot-pluggable" and adding or
removing a device, while the system is running, will cause all other devices
to be re-enumerated, this can change device identities but Windows does not
inform applications using them that they have been shuffled.
73's Erik.
ON4PB
-----Original Message-----
From: runninge...@gmail.com <runninge...@gmail.com>
Sent: Tuesday, 22 June 2021 10:37
To: wsjt-devel@lists.sourceforge.net
Subject: Re : Transmit audio dropouts
Hi,
I think I have a simple recipe to reproduce this problem :
I have 4 WSTX instances connected to 4 slices on my Flex 6600M. All is
working fine.
My USB headset is connected to a USB port.
=> Disconnect the headset and after that, PTT will work but no transmit
audio. Reconnecting the headset does not cure the problem, restarting WSJTX
however does.
Now, there are a couple of variants to reproduce the audio dropout :
- reconnecting the headset with working WSJTX instances
- doing the same on 4 WSJTX instances connected to SparkSDR. So, the Flex is
not at fault.
And lastly, sometimes it occurs that all 4 decode buttons remain active
blue.
73's Erik
ON4PB
------------------------------
Message: 3
Date: Sun, 20 Jun 2021 19:39:29 +0000 (UTC)
From: Louis Fiore <mailto:ltfi...@aol.com>
To: "mailto:wsjt-devel@lists.sourceforge.net";
<mailto:wsjt-devel@lists.sourceforge.net>
Subject: [wsjt-devel] Transmit audio dropouts
Message-ID: <mailto:385049449.2854162.1624217969...@mail.yahoo.com>
Content-Type: text/plain; charset="utf-8"
Good Afternoon,
Running version 2.4.0. Out of the blue I?ve noticed a few instances with my
Flex 6500 transmitter keying on but no audio is transmitted. It happens
randomly on both FT4 & FT8 about 10 to 20% of the time. Does anyone have an
idea what may be causing this?
73, Lou W2LTF
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