19 Nov
2018
19 Nov
'18
10:12 a.m.
Every time you unplug and re-plug a USB serial cable you cause the system
to create a new IRQ address for it, called COM5, 6,7,8,9 etc. If you do
the thing where you "remove usb devices safely" routine you can avoid this.
b
On Mon, Nov 19, 2018 at 12:13 PM geneb via cctalk <cctalk at classiccmp.org>
wrote:
On Mon, 19 Nov 2018, Ethan via cctalk wrote:
FYI, "In Use" doesn't mean the port is actively used by another
process,
it means that the /name/ has been assigned and isn't available to assign
to a new COM device.
g.
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> I have a question. I use the USB port for
serial. In my program, I use
a
> fixed com port. When going to the control
panel, I find that I see (in
use)
> tags on some of the com ports. I'm the
only one currently using the com
> ports but recently another (in use) showed up, requiring me to modify
my
> program to use another com port. How does one
unuse a com port? how do
I
find out
what is using it so I can stop it? I'm using windows 7
professional. Has anyone else had this problem? Dwight
Do you unplug the USB to Serial dongle with a terminal program open?