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

Home NTDEV

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: https://www.osr.com/osr-learning-library/


METHOD_IN_DIRECT

ArsenArsen Member Posts: 195

Hello.
Can I use METHOD_IN_DIRECT and METHOD_OUT_DIRECT together. When I want to send and receive buffer from driver.
like this

define MY_IOCTL CTL_CODE(FILE_DEVICE_NETWORK, 0x800, METHOD_IN_DIRECT | METHOD_OUT_DIRECT, FILE_ANY_ACCESS)

The CTL_CODE macro defines 2 bits for this, so I think we can't assign both methods. Then, how to send and receive buffers to and from the driver using a single IRP.

Comments

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 13-17 May 2024 Live, Online
Developing Minifilters 1-5 Apr 2024 Live, Online
Internals & Software Drivers 11-15 Mar 2024 Live, Online
Writing WDF Drivers 20-24 May 2024 Live, Online