RE: RE: [ntdev] WDM driver on creating virtual COM ports&nbs

NTDEV
1

AFAIK,he is wrong, but I don’t know 100%.

d

-----Original Message-----
From: xxxxx@lists.osr.com [mailto:xxxxx@lists.osr.com] On Behalf Of Phoenix Chang
Sent: Sunday, October 10, 2004 10:39 AM
To: Windows System Software Devs Interest List
Subject: Re:[ntdev] RE: [ntdev] WDM driver on creating virtual COM ports 

Hi, Doron Holan

Do you mean I couldn’t port the existing windows 2000 WDM driver to Windows
98? I have to write a new one which is VxD technique based?

someone told me that Virtual COM ports driver could be implemented with WDM
technique. he is wrong? god~~

Doron Holan:

Serial drivers are not WDM. The serial model in win9x is VXD based. I think
the driver you link against is ccport.vxd, but I am probably wrong on the
name. A win2k serial driver only works on win2k and forward, it will not work
on win9x. All of the interfaces are completely different, from the structures
to the IOCTLs.

d

-----Original Message-----
From: xxxxx@lists.osr.com [mailto:xxxxx@lists.osr
.com] On Behalf Of Phoenix Chang
Sent: Sunday, October 10, 2004 9:54 AM
To: Windows System Software Devs Interest List
Subject: [ntdev] WDM driver on creating virtual COM ports sharing between
Windows 2000 and Windows 98

Hoi,
I have the source code of WDM driver which can create several virtual COM
ports under Windows 2000 successfully. Due to the difference between NTDDK
and
98DDK, I modified the source code, and compiled it successfully under 98DDK
.

BTW: many structures and Macros are not supported in 98DDK, such as
SERIAL_COMMPROP, SERIAL_STATUS, IOCTL_SERIAL_SET_BAUD_RATE,
IOCTL_SERIAL_INTERNAL_DO_WAIT_WAKE(too many, I couldn’t list them all here)
.
to compile it under 98DDK successfully, I put all these definitions in the
newly created header file for other source files to include.

I tried to install the driver under windows 98, but it seems doesn’t work,
the
driver file *.sys was not copied to the system driver folder, even so, the
system thought hardware info was in the INF file, but can only see one COM
port it created after installation, while without the SYS file copied I
mentioned before.

could the system Windows 2000 and Windows 98 share the same driver?
or we can only use VxD to implement such function?
I was stressed out.
anyone knows how to explain and solve it? would be my god.

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Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256

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Questions? First check the Kernel Driver FAQ at http://www.osronline.com/article.cfm?id=256

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