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/
https://community.osr.com/discussion/293333/zwreadfile-to-read-from-uart-asynchronously - it ain't there. It was there yesterday, I responded, it disappeared.
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