[solved] writing a driver: why does Windows not know the date

If it doesn't fit anywhere else, drop it in here. (not to be used as a chat/nonsense section)

Moderator: Moderator Team

Post Reply
Gary
Posts: 10
Joined: Fri Jan 24, 2020 8:46 pm

[solved] writing a driver: why does Windows not know the date

Post by Gary »

Hello,
I am trying to write my first driver for Windows 2000. The driver does nothing at the moment. The DriverEntry-function returns 0 ("all ok") and that's it. I wrote an *.inf file but something seems to be wrong about it because Windows is unable to read the date.
[ external image ]
The date is in the same line as the version, but Windows has no problem reading the version. Does someone know what's wrong?

http://ontheserver.de/temp/2020-01-24/graphic.inf
http://ontheserver.de/temp/2020-01-24/graphic.sys

Thank you!

Gary
Last edited by Gary on Sat Jan 25, 2020 1:26 pm, edited 1 time in total.

hbelusca
Developer
Posts: 1169
Joined: Sat Dec 26, 2009 10:36 pm
Location: Zagreb, Croatia

Re: writing a driver: why does Windows not know the date

Post by hbelusca »

Try removing the space after the comma?

Gary
Posts: 10
Joined: Fri Jan 24, 2020 8:46 pm

Re: writing a driver: why does Windows not know the date

Post by Gary »

Thank you for the response. The space was/is legal according to the syntax. I just checked it anyway but my test confirmed that removing the space makes no difference.

I checked the documentation and found that according to the documentation a driver needs to be digitally signed. If it is not signed then the date is replaced by 00/00/0000. In reality it seems as the date is simply not added to the registry. So I added 2 keys manually:
- DriverDate and
- DriverDateData

I just took the exact names for these keys and values from someone else's driver and from then on the device manager showed the date (from the driver I used as source). To fix this issue I will probably just add an instruction to the inf file to add the register keys (kind of manually adding what the driver installation procedure ignored).

The key DriverDateData seems to hold a Windows timestamp of the value in DriverDate.

shunesburg
Posts: 193
Joined: Wed Feb 21, 2018 3:46 pm
Location: Somewhere in France

Re: [solved] writing a driver: why does Windows not know the date

Post by shunesburg »

Try with a date before 2000 to be sure it's not a problem of the date (like the Year 2000 Problem).

Gary
Posts: 10
Joined: Fri Jan 24, 2020 8:46 pm

Re: [solved] writing a driver: why does Windows not know the date

Post by Gary »

@shunesburg: Are you serious? :-)

shunesburg
Posts: 193
Joined: Wed Feb 21, 2018 3:46 pm
Location: Somewhere in France

Re: [solved] writing a driver: why does Windows not know the date

Post by shunesburg »

Gary wrote:
Mon Jan 27, 2020 10:14 pm
@shunesburg: Are you serious? :-)
Half ;-)

minecraftchest1
Posts: 41
Joined: Tue May 26, 2020 5:30 pm

Re: [solved] writing a driver: why does Windows not know the date

Post by minecraftchest1 »

shunesburg wrote:
Mon Jan 27, 2020 2:41 pm
Try with a date before 2000 to be sure it's not a problem of the date (like the Year 2000 Problem).
What year 2000 problem? If I may ask.

shunesburg
Posts: 193
Joined: Wed Feb 21, 2018 3:46 pm
Location: Somewhere in France

Re: [solved] writing a driver: why does Windows not know the date

Post by shunesburg »

It's a joke because, before 2000 in the XXth century, there is a bug with the changing of date (1900 -> 2000).

minecraftchest1
Posts: 41
Joined: Tue May 26, 2020 5:30 pm

Re: [solved] writing a driver: why does Windows not know the date

Post by minecraftchest1 »

The 32 bit version of the 2030 problem. (If I remember right.)
My name is MinecraftChest1.
I am a Windows and Linux user.
I have broken reactos once.
That's my resume.

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest