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tripdout commented on Programmers and software developers lost the plot on naming their tools   larr.net/p/namings.html... · Posted by u/todsacerdoti
tripdout · 5 days ago
And the species of flies "Phthiria relativitae" was named as a pun on "Theory of relativity" and "Reissa roni" after "Rice-A-Roni".
tripdout commented on Free interactive tool that shows you how PCIe lanes work on motherboards   mobomaps.com... · Posted by u/tagyro
tripdout · a month ago
Very cool. Seeing how almost everything from WiFi, to NVME SSDs, (to apparently USB ports sometimes?) are connected to it, is PCIe the only high-speed interconnect we have for peripherals to communicate with modern CPUs?
tripdout commented on Verifying your Matrix devices is becoming mandatory   element.io/blog/verifying... · Posted by u/LorenDB
tripdout · a month ago
What is verification? What does it involve doing? A lot of information on why it's useful, but how is it implemented? I hope it's not something like the Play Integrity API, but with no information to go on, I can't say either way.
tripdout commented on Android 16 QPR1 is being pushed to the Android Open Source Project   grapheneos.social/@Graphe... · Posted by u/uneven9434
e40 · a month ago
Since when did they stop using Gerrit? On mobile and it doesn’t appear to be that.
tripdout · a month ago
They still do. This is Android Code Search, which is a typical file tree and contents viewer.
tripdout commented on Steam Frame   store.steampowered.com/sa... · Posted by u/Philpax
tripdout · a month ago
> Steam Frame is a PC: ... Just like any SteamOS device, install your own apps, open a browser, do what you want: It's your PC.

Always glad to see this.

tripdout commented on Recovering videos from my Sony camera that I stupidly deleted   jeffgeerling.com/blog/202... · Posted by u/speckx
tripdout · a month ago
Fairly unsatisfying conclusion. I’d be interested in knowing what that proprietary program does, how it works so well, how Sony stores video files, etc.
tripdout commented on From 400 Mbps to 1.7 Gbps: A WiFi 7 Debugging Journey   blog.tymscar.com/posts/wi... · Posted by u/tymscar
tripdout · 2 months ago
> Running iperf server on the router itself creates CPU contention between the WiFi scheduling and the iperf process. The router’s TCP stack isn’t tuned for this either. Classic mistake.

Can you elaborate on this? I don't know much about WiFi so I'm curious what CPU work the router needs to do and what wouldn't be offloaded to hardware somehow (like most routing/forwarding/QoS duties can be).

tripdout commented on Ubiquiti SFP Wizard   blog.ui.com/article/welco... · Posted by u/eXpl0it3r
bananapub · 2 months ago
some context that's perhaps not obvious to non-networking people: essentially all networking hardware above 1G doesn't have rj45 or fibre ports in it, it has holes that you put modules in, "SFP+" modules for 10G, "SFP28" for 28gig networking, etc.

most manufacturers of devices - the things with the holes, NICs, switches, routers - make their devices only officially work with modules that claim to be manufactured by that same manufacturer. so, you can either buy modules from that manufacturer, or buy modules from some other company (e.g. fs.com, 10gtek) who programs the modules to claim that they are from that manufacturer. "officially" can mean anything from "we won't help you if you open a support case" to "the device will make a whiney log message on boot if it's not one of our modules" to "it simply doesn't work unless you hack an EEPROM on the device".

this is somewhat annoying, since it means you need to buy specific modules for specific devices, you can't just keep a pile of SFP+ 10G-LR modules around, you need some "Intel SFP+ 10G-LR" and some "Cisco SFP+ 10G-LR", etc.

so, these third party manufacturers of the modules, like fs.com and 10gtek, will also sell you programmers for the modules, which lets you change what manufacturer the module claims made it. these programmers have been, historically and hilariously, tied to the actual manufacturer of the modules! so you can buy some 10G-LR SFP+ modules from fs.com and a fs.com programmer to set make some "Intel" and some "Cisco", but if you buy some 10gtek 10G-LR modules, you would need to buy a 10gtek programmer.

~so, this device that Ubiquiti has made is the meta-programmer - it can apparently program any module, from any actual manufacturer, to claim to be made by any manufacturer.~

edit: the post seems deliberately confusing - what they are actually selling is a device that can re-program Ubiquiti SFP+ modules by copying the manufacturer code from another SFP+ module that you insert into the programmer. so it's the same as what fs.com and all the other sell, but Ubiquiti's is ~1/10th the price (e.g. https://www.fs.com/uk/c/fs-box-3389).

tripdout · 2 months ago
The FS-Box lets you pick from a list of manufacturers and serial numbers. Does this only do cloning from another physically inserted SFP?
tripdout commented on Ubiquiti SFP Wizard   blog.ui.com/article/welco... · Posted by u/eXpl0it3r
tripdout · 2 months ago
Does it only clone the EEPROM from one SFP module to another (so you need to physically posess both), or can you write arbitrary data?

And does it only write to SFP modules from Ubiquiti (looking at you FS BOX)?

Another tool you can use for this (without a nice UI) is the SFP Buddy: https://oopselectronics.com/product/SFPB

tripdout commented on JetKVM – Control any computer remotely   jetkvm.com/... · Posted by u/elashri
nati0n · 2 months ago
PiKVM seems to be the large competitor here and is completely open source. If you're looking into KVM solutions, probably check it out, but JetKVM is over 50% less, which is a huge argument in favor of it.

https://pikvm.org

tripdout · 2 months ago
What justifies the V4 Plus being worth $350? They're using the CM4 so they’ve made a PCB, but what hardware are they adding over the peripherals available on a Pi 4/5? All I can tell is an additional Ethernet port, a SIM card tray, and an “ATX controller”.

What does the board look like, why can’t I DIY that version, etc. Are they just trying to make it up with the software (that I also can’t tell what it looks like).

u/tripdout

KarmaCake day1100January 23, 2023View Original