Resizeable Bar Support on the Raspberry Pi
14 comments
·October 9, 2025tetris11
noelwelsh
I think of this as a Midwestern thing, where land is cheap and one can afford to devote a lot of space to hobbies. It seems to be the same thing in fabric arts, where people will have sewing rooms larger than the footprint of many UK houses. I could be totally be off base here. Maybe some actual Midwesterners can weigh in.
ssl-3
Small-town midwesterner here.
There's some truth to what you're saying. Even the smallest apartment I've ever had was big enough to dedicate space to some serious hobbies, and it was (at that time) very inexpensive to rent compared a much smaller place in a more-dense area.
My lifestyle isn't very compact because it has never needed to be compact. Compactness isn't a common expectation 'round these parts. I have space to keep collections of stuff that I find interesting, and to make use of it.
There's tradeoffs to this lifestyle, though. The corner store is only a short walk away, but it mostly just sells beer, soda, and smokes. There's no walking to get something like groceries, or a new shirt (or a used shirt, for that matter). There isn't much for local entertainment. It's 15 miles to the next-largest city, and there's zero public transportation aside from the buses that get kids to/from school.
(It's hard to imagine that there aren't areas of the UK that are of similar form, though, with roomy housing, space for things, and with very limited services and/or options for commerce nearby.)
noelwelsh
There are certainly places with very limited services! As for roomy houses, though, that is much harder to find. I did a little searching and found a UK govt report on housing sizes [1]. For a point of comparison, average house size broken out by house type is smaller for all types than the average across all house types for Missouri [2; taken as a random exemplar of the Midwest]. Only when we break out to detached houses built in particular time periods (p.18) does the average become roughly equal to Missouri, and remember this is across all housing in Missouri (IIUC).
The UK settlement pattern is quite weird. About 1/6 of the population lives within the South-East, which is roughly the area commutable to London by train. Then another 1/6 of the population lives in London. So land is very expensive there. The rest of the UK is on average a lot poorer. So the UK in general is not conducive to large housing. You can certainly find old farm houses out in the sticks, and small villages that are mostly expensive large houses. These are a tiny fraction of the housing, though. I believe UK houses are on average the smallest in Europe. (I think the UK would benefit a lot from some decentralisation, but that's a different topic. Side eye in cancelled HS2 lines.)
[1]: https://assets.publishing.service.gov.uk/government/uploads/...
rcarmo
As an EU resident with a modestly large flat who's dedicated 1/3 of it to a large living room because we prioritized room to relax and spend time together, I pine for the chance to have more than a pair of IKEA KALLAX to store (and pile upon) all my electronics stuff and 3D printer(s).
justin66
It's all true, when I moved to the west coast from the midwest I was struck by the way everyone just piled their possessions into a heap in the middle of their workspace rather than placing them in labeled containers. At times the heaps reach the ceiling.
jasonjayr
Jeff is a bit more than a hobbyist, between him & his father, they are rather accomplished professional radio + electric engineers.
ptaffs
...and they have time and access to label maker, as opposed to sharpie. That's some dedication to having order.
monocasa
> That also led me to research why a card with only 12GB of VRAM is requesting a 16GB BAR, and as far as I can tell, it has something to do with potential uses like SR-IOV where multiple VMs could access a single device, thus requiring more BAR space for the physical device being shared... BAR is still a little bit of a mystery to me.
Lengths of BARs have to be powers of two.
eqvinox
> Resizeable Bar Support on the Raspberry Pi
Why'd the capitalisation of BAR get lost between the article and here? It's a little triggering.
Other than that, nice to see, a lot of ARM SoCs & SBCs have asininely small PCIe memory map sizes. Looking at you, RK3399, what was it, 64MB? Not even enough for some NICs.
monocasa
That's an hn title munging things I think.
throw74845858
I am still waiting for Pi5 to correctly support USBC power delivery spec. 5.1 Volts at 5 amps is a dirty hack and fire hazard, not consumer electronics!
klempner
Huh? There are plenty of good reasons to complain about the 5V5A thing, but "fire hazard" is not one of them.
It is even entirely within spec for a PD power supply to offer a 5V5A PDO, as long as it is only doing so with a 5A capable cable (i.e. 100W or 240W). 5V5A is no more a fire hazard than 20V5A.
The spec violation isn't that it negotiates 5V5A when available, but that it isn't willing to buck from 9V or 15V to get those 25W which means that power supply compatibility is incredibly limited.
prism56
Shame a 5v "fake" PPS voltage couldn't somehow be obtained or patched in. Loads of chargers would work then.
My pocket PD can request 5v5a from quite a few chargers in PPS mode.
I'm always fascinated by hobbyist's storage compartments. Some of the labels of the boxes in the background: