gdbplus's Substack
gdbplusMy personal Substack
| Platform |  | Pricing | Only free issues | Publishes | Daily |
|---|---|---|---|---|---|
| Issues | 33 | Founded | 4 months ago | Last Issue | 2 days ago |
| Active | |||||
Read this Newsletter
gdbplus.substack.comLatest Issues
eSPI EC/SIO UART Access and Enablement in UEFI BIOS
Linkedin: Click David Zhu
The serial port has been the firmware engineer’s eyes and ears for decades. But the physical path from CPU to UART has fundamentally changed. LPC gave way to eSPI, and the debug UART that used to live on a simple...
How EDK2 BDS Finds the UEFI Shell as a Boot Option
David Zhu
Subscribe now
You power on a QEMU VM with OVMF firmware. The UEFI Shell appears in the boot menu. You type exit, and your OS boots. But have you ever wondered — how did BDS know the Shell was even there?
Unlike a disk-based O...
Why You Never Need to Define gBS and gSmst — EDK2’s Library Constructor Magic
Linkedin: click DavidZhu
If you’ve written any EDK2 driver, you’ve typed gBS->AllocatePool(...) or gSmst->SmmAllocatePool(...) without ever declaring those variables. They just work. But why?
The short answer: EDK2’s library co...
Deep Dive into Winbond W25Q256JV: A Datasheet Guide for Firmware and Linux Developers
Linkedin : click David Zhu
The Winbond W25Q256JV is a workhorse 256 Mbit (32 MB) Serial NOR flash. It shows up on motherboards, embedded Linux boards, and anywhere you need reliable, fast non‑volatile storage for firmware. If you’re writin...
EDK2 SW SMI: All Four Register Approaches and the Dispatch Architecture
Linkedin: click David Zhu
Subscribe now
The Software SMI (SW SMI) is the primary inter-process communication mechanism between the Normal World (DXE/Runtime) and the Secure World (SMM) in UEFI firmware. Understanding exactly how an...
Key Facts
Audience Metrics
Subscribers, engagement, traffic and sponsorship for gdbplus's Substack.
| Subscribers | Engagement | 72 | Monthly Web Visits | ||
|---|---|---|---|---|---|
| Accepts Sponsors | Estimated Cost per Ad | ||||
Explore More
Authors
The writers behind this newsletter.
STM32/UEFI BIOS/Linux Driver Developer and Writer
Frequently Asked Questions
How can I access the email archive for gdbplus's Substack?
You can find recent issues that have been published by gdbplus's Substack on Reletter by scrolling up to where it says Latest Issues. Tap on the link for any of the most recent emails or hit More Issues to see older ones.
How many subscribers does gdbplus's Substack have?
To see how many people subscribe to gdbplus's Substack, simply upgrade your Reletter account. We provide readership numbers and lots of other stats for this newsletter so you can decide if it's worth reaching out to.
How can I advertise in gdbplus's Substack?
Newsletter advertising can be extremely effective when it's done right. Before you pitch gdbplus's Substack as a potential sponsor or partner, make sure that you've done your research and checked its newsletter stats with Reletter.
Then, personalize one of our winning pitching templates and send it to the right person using the contact info provided.
How much does it cost to sponsor a publication like gdbplus's Substack?
Newsletter ad rates (or CPM) vary depending on many factors, including industry, number of subscribers, open rate, ad placement and more.
To find out how much an ad will cost, contact gdbplus's Substack using the contact information provided and ask for a copy of their media kit.
How can I find newsletters related to gdbplus's Substack?
Scroll up to where it says Related Newsletters to see other publications like gdbplus's Substack. You can also search our email newsletter directory to discover other newsletters that cover the topics you're interested in.
How do I contact gdbplus's Substack?
Reletter provides this newsletter's website URL above, where you will often find their contact information. We also provide links to associated social media accounts and pitching templates so you can reach out fast.