[Ffmpeg-devel] [PATCH] Correct inttypes.h emulation for VisualStudio
Tue Dec 5 23:11:49 CET 2006
On 12/6/06, M?ns Rullg?rd <mru at inprovide.com> wrote:
> Corey Hickey <bugfood-ml at fatooh.org> writes:
> > M?ns Rullg?rd wrote:
> >>> There's a computer where I work that has two onboard serial
> >>> ports. Windows calls them both COM2, and it can't use either of them.
> >> It's sometimes possible to change the numbering from the device
> >> manager.
> > At the time, as far as I could tell, changing it within the device
> > manager was not possible (I did look, but I don't remember the
> > details). I just plugged in a USB-->serial adapter and used that
> > instead.
> What annoys be with USB-serial adapters in windows is that each time
> you plug it in, the COM number gets incremented, soon becoming
> inaccessible from programs that only offer a choice of COM1-4, and
> eventually stops working entirely when it reaches some maximum value.
Not exactly. Windows assigns COM port number to pair "USB port + Adapter
serial number". So if you plug same adapter to the same USB port it set
the same COM port number. :)
And if you overloaded with adapter instances, you could delete unused ones
in Device Manager. And thier COM port numbers will be freed and used
if you plug other adapter or the same adapter to other port.
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