Assigning the COM Port number for the device

NTDEV
1

Hi,

I want to assign a com8 for my device when it is detected by PNP manager. Windows is assign a com4 as default to my device. Please provide the steps to change the com port number to user defined com number.

2

Hi,

I want to assign a com8 for my device when it is detected by PNP manager.
Windows is assign a com4 as default to my device. Please provide the steps to
change the com port number to user defined com number.
I am writing the driver in KMDF. So guide me in writing the code to change com port number.

3

arnold wrote:

I want to assign a com8 for my device when it is detected
by PNP manager. Windows is assign a com4 as default to
my device. Please provide the steps to change the com port
number to user defined com number.

What if COM8 is already taken?

The set of routines you want is here:

http://msdn.microsoft.com/en-us/library/ff546483(v=VS.85).aspx

But I think to do this at device install time, you’ll need to supply a coinstaller…