Windows System Software -- Consulting, Training, Development -- Unique Expertise, Guaranteed Results


Before Posting...

Please check out the Community Guidelines in the Announcements and Administration Category.

More Info on Driver Writing and Debugging

The free OSR Learning Library has more than 50 articles on a wide variety of topics about writing and debugging device drivers and Minifilters. From introductory level to advanced. All the articles have been recently reviewed and updated, and are written using the clear and definitive style you've come to expect from OSR over the years.

Check out The OSR Learning Library at:

Serial driver?

OSR_Community_UserOSR_Community_User Member Posts: 110,217
can someone tell me if I can use serial driver in my intermediate driver
to do DMA using IOCTL codes? Is there maybe some other way to do that in
other way?
If I know that I will use COM2, and device is not necessary able to make an
interrupt, do I need DPC routine?

I have driver that is not intermediate but I'm not able to do successful
call of IoConnectInterrupt function. This is connected with my two previous
Is maybe the reason of failure that I try to connect to a mapped interrupt
or something else?

Sign In or Register to comment.

Howdy, Stranger!

It looks like you're new here. Sign in or register to get started.

Upcoming OSR Seminars
OSR has suspended in-person seminars due to the Covid-19 outbreak. But, don't miss your training! Attend via the internet instead!
Kernel Debugging 16-20 October 2023 Live, Online
Developing Minifilters 13-17 November 2023 Live, Online
Internals & Software Drivers 4-8 Dec 2023 Live, Online
Writing WDF Drivers 10-14 July 2023 Live, Online