bri3d

10 ms·

121.
by bri3d 5mo ago
Windows Form Designer in Visual Studio still works in that same way? This was one of the least differentiated things, really; while XCode’s interface building tools have always been clunkier they also offer the same functionality too.
122.
by bri3d 5mo ago
SkySafe ( https://skysafe.io ) | Wireless Engineer (SDR) | San Diego, CA | REMOTE or HYBRID At SkySafe we build drone detection and tracking at scale. I am looking for a Wireless Communications Engineer with SDR expertise to join
123.
by bri3d 5mo ago
ForSCAN is awesome but it's an orthogonal conversation since it's a reverse engineered diagnostic tool rather than a first-party one. If we expand the conversation to that space there are tons of options with varying capabilities
124.
by bri3d 5mo ago
I agree that J2534 is sketchy. The standard isn't very good to start with, there's usually no matrix (ie x systems * y devices) conformance testing but instead just a brief QA step done at some compliance stage in a release proces
125.
by bri3d 5mo ago
Emissions. Most things about ICE cars come through EPA and CARB.
126.
by bri3d 5mo ago
WiFi is, err, still OTA, although it does answer the eSIM question. I assume the truly concerned/paranoid wouldn't want to connect to WiFi either, since presumably telemetry / tracking metadata could be uploaded at that time
127.
by bri3d 5mo ago
Interesting, I reviewed every Rivian software update recall letter I could find before I posted this and they all said something like "If you have not already updated to software version 2025.18.30 or later, please do so to remedy this
128.
by bri3d 5mo ago
Sure; I think that's a reasonable take too. I have no idea what their TTL requirements are or how frequently they update the ADAS database; if they're on the order of real-time, this seems like a complete technical constraint, if
129.
by bri3d 5mo ago
Yep! Depending on the vintage, BMWs have "real" DoIP or a BMW-ized version (sort of like how KWP2000 was the predecessor to UDS). For emissions modules, they still also have to support updates over UDS as well as ENET, though, for
130.
by bri3d 5mo ago
I think it's a coarse-grained "this highway has been deemed non-anomalous enough to allow the vision systems to engage," not a fine-grained "we mapped every lane marking."
131.
by bri3d 5mo ago
> Rivian's OBD-II port actually hides an Ethernet signal inside of it - so the interface is certainly there. Nice. This is really normal now, for what it's worth - all of the European makes have moved this direction as well (Do
132.
by bri3d 5mo ago
Nice, thanks for the reply; this is surprisingly undocumented online. Presumably if they got cornered and the module under repair was updatable via this mechanism they'd have some ability to use that system, then. I wonder how charitab
133.
by bri3d 5mo ago
> limit or disable certain functionality in the vehicle: ... over-the-air updates, which provide new ... safety enhancements ... I wonder what happens if you disable the e-SIM (in the US) and then a safety recall appears via software upd
134.
by bri3d 5mo ago
I believe the "advanced" LKAS on Rivian only works on highways and relies on an "up to date" geofencing database, so that's the first-order technical reason. And I'm sure they don't exactly prioritize fixi
135.
by bri3d 6mo ago
I remember that era (and it's still present on some other architectures) - devicetrees were at least a huge improvement over compile-time board config! > ACPI/UEFI doesn't always give you a clean abstract surface to work w
136.
by bri3d 6mo ago
I don't know that I agree with the article's point about stagnation ("quiet, non-evolving field") as there have been plenty of new developments in the 2010s and 2020s, but speaking as someone who hires RF engineers of va
137.
by bri3d 6mo ago
> these PC systems sort of lack a bios, each one needing a hand built DeviceTree: it makes supporting them kind of a nightmare. Modern PC ARM systems like Snapdragon Elite X use UEFI and ACPI. This is actually what makes them difficult,
138.
by bri3d 6mo ago
This is... literally exactly what they are doing? Of all of the reverse engineering related Linux efforts (and most corporate Linux efforts), Asahi have been the most methodical and relentless about upstreaming changes into the kernel and a
139.
by bri3d 6mo ago
> I'm concerned that after all these years, it's still a separate project and not an effort sustained directly within the kernel mainline and mainstream distributions What does this mean? Hardware support is rarely developed in
140.
by bri3d 6mo ago
Fair; I should have said "from the standpoint of the driver." > USB 4 supports Thunderbolt 4 It's the opposite! I hate to get into it as I saw the USB naming argument pretty thoroughly enumerated in the comments here alrea
141.
by bri3d 6mo ago
I'm disappointed that both the article and comments don't go into the actual differences between how these adapters work and the overhead incurred by USB. At a high level, I'm pretty sure Thunderbolt will be significantly bet
142.
by bri3d 6mo ago
DPF (Diesel Particulate Filter) and SCR (Selective Catalytic Reduction, which uses DEF, Diesel Exhaust Fluid) are two mostly different systems. DPF traps soot in a filter which then burns the soot off into gas later (regen). SCR reduces NOx
143.
by bri3d 6mo ago
I wonder by what mechanism they plan to import these into the US. This seems like a emissions regulation end-run like glider trucks, but my understanding of the EPA import rules doesn't really leave any room for this type of game. Yes,
144.
by bri3d 6mo ago
I strongly disagree with this take, and frankly, this reads like the state of "research" pre-LLMs where people would run fuzzers and scripted analysis tools (which by their nature DO generate enormous amounts of insidiously wrong
145.
by bri3d 6mo ago
"More efficient" of course has many axes (cost, energy consumption, manual labor requirement vs cost of human, time, quality, etc.). However, as a long-time reverse engineer and exploit developer who has worked in the field profes
146.
by bri3d 6mo ago
> Electron apps all look the same without actually making much efforts to make them "personal" -- they just want to release an app ASAP so they chose Electron. Which is the most goofy thing about the whole situation! I would ar
147.
by bri3d 6mo ago
For what it’s worth, Jetson at least has documentation, front ported / maintained patches, and some effort to upstream. It’s possible with only moderate effort and no extensive non-OEM source modification to have an Orin NX running an
148.
by bri3d 6mo ago
I wouldn’t really call that a “complete crack” (although it IS cool). There’s an _awful_ lot more firmware in a car or tractor than the display unit, and arguably it’s one of the less important modules in most architectures. Cracked version
149.
by bri3d 6mo ago
I think the point they were trying to make here was “Claude did better than a fuzzer because it found a bunch of OOB writes and was able to tell us they weren’t RCE,” not “Claude is awesome because it found a bunch of unreachable OOB writes
150.
by bri3d 6mo ago
This is not how first party vulnerability research with LLMs go; they are incredibly valuable versus all prior tooling at triage and producing only high quality bugs, because they can be instructed to produce a PoC and prove that the bug is

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