Developing a Serial Port Driver

NTDEV
1

Hi all,
We have serial server on LAN (TCP/IP network) which has got several shared COM ports and a Ethernet port.
Several devices can be connected to serial server using the COM ports.Then we have several PC’s on the same LAN as the
serial server.These PC’s controls/monitors the devices.
I need to write a application which emulates the COM ports available on Serial Server.This application will be installed in each client PC’s.I need to write a driver which intercepts the above emulated COM Port calls and sends and receives
information over a TCP/IP socket.
How to write such a driver?Can any one give me information.
Thanks
Jayalakshmi

2

You will need a driver, not an app, and a complex driver, which will support all IOCTLs the serial port must support.

Max

----- Original Message -----
From: Jayalakshmi
To: NT Developers Interest List
Sent: Thursday, June 05, 2003 10:34 AM
Subject: [ntdev] Developing a Serial Port Driver

Hi all,
We have serial server on LAN (TCP/IP network) which has got several shared COM ports and a Ethernet port.
Several devices can be connected to serial server using the COM ports.Then we have several PC’s on the same LAN as the
serial server.These PC’s controls/monitors the devices.
I need to write a application which emulates the COM ports available on Serial Server.This application will be installed in each client PC’s.I need to write a driver which intercepts the above emulated COM Port calls and sends and receives
information over a TCP/IP socket.
How to write such a driver?Can any one give me information.
Thanks
Jayalakshmi

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3

After over 6 months simply trying to write the skeleton WDM architecture to support exactly this type of driver for an identical product, I can say from experience that boy is “complex” every an understatement. I recommend reviewing the toaster sample as a starting point.

Wish I could help you more, but from the description of your product, which is very similar to our latest product line, providing such assistance might be considered aiding and abetting the enemy by my managers.
“Maxim S. Shatskih” wrote in message news:xxxxx@ntdev…
You will need a driver, not an app, and a complex driver, which will support all IOCTLs the serial port must support.

Max

----- Original Message -----
From: Jayalakshmi
To: NT Developers Interest List
Sent: Thursday, June 05, 2003 10:34 AM
Subject: [ntdev] Developing a Serial Port Driver

Hi all,
We have serial server on LAN (TCP/IP network) which has got several shared COM ports and a Ethernet port.
Several devices can be connected to serial server using the COM ports.Then we have several PC’s on the same LAN as the
serial server.These PC’s controls/monitors the devices.
I need to write a application which emulates the COM ports available on Serial Server.This application will be installed in each client PC’s.I need to write a driver which intercepts the above emulated COM Port calls and sends and receives
information over a TCP/IP socket.
How to write such a driver?Can any one give me information.
Thanks
Jayalakshmi

—
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