usb2 serial driver

hi..
plz read this..
Serial performs the following tasks to create a COM port device interface:

Creates a symbolic link between \DosDevices\<PortName> and the internal
device object name for a COM port.
<PortName> is the value of the PortName (or Identifier) entry value for the
COM port. The Ports class installer sets PortName to COM<n>, where <n> is a
COM port number that the installer obtains from the COM port database. Serial
uses this name to create a symbolic link to the port. There is no limit to
the number of COM ports that Windows supports. User-mode clients use the
symbolic link name to open a COM port.


here it is mentione that port class installer sets portname to "com" and
serial uses it it asa symbolic link....from where port class installer will
take this "com".. is there any relation with h/w?why i am asking becz i am
developing usb2ser driver ..i htought if i install my driver in port class it
will take care of this..is it right?

Maxim
Thu Jul 17 08:24:42 CDT 2008

> here it is mentione that port class installer sets portname to "com" and
> serial uses it it asa symbolic link....from where port class installer will
> take this "com"..

From the registry database.

The API to access it is documented.

--
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
maxim@storagecraft.com
http://www.storagecraft.com

sukumar
Thu Jul 17 08:38:05 CDT 2008



"Maxim S. Shatskih" wrote:

> > here it is mentione that port class installer sets portname to "com" and
> > serial uses it it asa symbolic link....from where port class installer will
> > take this "com"..
>
> From the registry database.
>
> The API to access it is documented.
>
> --
> Maxim Shatskih, Windows DDK MVP
> StorageCraft Corporation
> maxim@storagecraft.com
> http://www.storagecraft.com
>
> i mean it is default right ?if we choose the class installer as ports we will get the portname as COM and we will use this as symbolic link to the applications

chris
Thu Jul 17 10:49:04 CDT 2008

On Jul 17, 8:38 am, sukumar <suku...@discussions.microsoft.com> wrote:

> i mean it is default right ?if we choose the class installer as ports
> we will get the portname as COM and we will use this as symbolic
> link to the applications

Why are you questioning *exactly* what the documentation says? Why
don't you just try it and find out for yourself?

sukumar
Fri Jul 18 10:26:02 CDT 2008



"chris.aseltine@gmail.com" wrote:

> On Jul 17, 8:38 am, sukumar <suku...@discussions.microsoft.com> wrote:
>
> > i mean it is default right ?if we choose the class installer as ports
> > we will get the portname as COM and we will use this as symbolic
> > link to the applications
>
> Why are you questioning *exactly* what the documentation says? Why
> don't you just try it and find out for yourself?
>
i tried
i installed my driver in test PC...some installation problem came as device
is not configured properly..i deleted my .sys in windows/system32/drivers n
.inf files in windows/inf ..i found them n delete...and if i reconnect the
device to PC add hardware wizard is not cmng at all..plz help me to resolve
this...
can any one tell me "device is not cofigured correctly "is this error
about driver coding or becz of changes in inf file....