serial port emulation

NTDEV
1

Hello!

I’m writing a driver emulating a serial port. I found in a previous post
that the only necessary operation to achieve this is adding a new key to the
registry path
HKLM\HARDWARE\DEVICEMAP\SERIALCOMM.
Is this the only operation to do ?
And again, i need to do the same operation (emulating a port) with a
parallel driver. How can I do this ?
Where does windows 2000 retrieves information about the device types ?..If I
browse the windows kernel objects I cannot see any information about device
types.

Thanks
Regards

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2

thats right! U need to create the sybolic link key in
HKLM\HARDWARE\DEVICEMAP\SERIALCOMM . Install ur device in COM&LPT class and
if u want to access LPT get the parport Object reference in ur driver to be
able to sent the IOCTLs to parallel port thats it! the job is done : )

Regards,
-Naveen

On 11/19/01, ““Quan Minh Ngoc” ” wrote:
> This is a multi-part message in MIME format.
>
> ------=_NextPart_000_0026_01C1711F.C13C3D80
> Content-Type: text/plain;
> charset=“iso-8859-1”
> Content-Transfer-Encoding: quoted-printable
>
> Hello!
>
> I’m writing a driver emulating a serial port. I found in a previous post
> that the only necessary operation to achieve this is adding a new key to =
> the
> registry path
> HKLM\HARDWARE\DEVICEMAP\SERIALCOMM.
> Is this the only operation to do ?
> And again, i need to do the same operation (emulating a port) with a
> parallel driver. How can I do this ?
> Where does windows 2000 retrieves information about the device types =
> ?..If I
> browse the windows kernel objects I cannot see any information about =
> device
> types.
>
> Thanks
> Regards
>
>
>
> —
> You are currently subscribed to ntdev as: $subst(‘Recip.EmailAddr’)
> To unsubscribe send a blank email to leave-ntdev-$subst(‘Recip.MemberIDChar’)@lists.osr.com
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3

Pre-defined naming styles in NT4.
PnP interface GUIDs in w2k.

Max
----- Original Message -----
From: Quan Minh Ngoc
To: NT Developers Interest List
Sent: Monday, November 19, 2001 7:29 PM
Subject: [ntdev] serial port emulation

Hello!

I’m writing a driver emulating a serial port. I found in a previous post
that the only necessary operation to achieve this is adding a new key to the
registry path
HKLM\HARDWARE\DEVICEMAP\SERIALCOMM.
Is this the only operation to do ?
And again, i need to do the same operation (emulating a port) with a
parallel driver. How can I do this ?
Where does windows 2000 retrieves information about the device types ?..If I
browse the windows kernel objects I cannot see any information about device
types.

Thanks
Regards

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