this post was submitted on 25 Nov 2023
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[–] [email protected] 3 points 11 months ago (6 children)

That's not truly 200. A quick look at the list shows the same model over and over again. https://www.reddit.com/r/linux/comments/gc8a2e/i_finally_found_a_cheap_usb_fingerprint_reader/ here are a ton of people complaining about them 3 years ago. The climate likely hasn't changed in the Linux world about fingerprint readers.

[–] [email protected] 1 points 11 months ago* (last edited 11 months ago) (5 children)

shows the same model over and over again

That's incorrect - check the hardware IDs, they're different. If it's the same model they'll have the same hardware ID.

Your linked thread is also from three years ago - that's a long time in the Linux world where things change quickly. I could just as easily dig up a thread about x not working on pretty much any topic, so it's not really evidence of anything.

Edit: I just checked the Gitlab releases page for libfprint. Not only have they added more devices (that aren't listed on the page that I linked previously), it also proves that support for many new devices have been added over the last three years. So claiming that nothing has changed in these past three years, is being disingenuous towards the good efforts made by these devs.

[–] [email protected] 1 points 11 months ago (4 children)

Same model, different device id. It happens. There are tons more of device IDs out there that don't work on Linux than those ones that do.

I'm not going to waste money and time proving it but this is a deeply seeded flaw of the Linux community. "Oh these things don't work" is always met with "oh it does you just have to take some impossible steps like decoding this list of USB IDs into actual products you can buy. No, you can't just use any random fingerprint reader which totally works on Windows. It Has to be the exact id on the list. Could be marketed as the same model but you have to make sure you have the right id before you buy it somehow. Good luck!" No business is going to deal with that and only hobbyists into modifying their computer is going to use the OS. Everyone else wants to use their computer to do things, not have their computer as a project in itself.

[–] [email protected] 1 points 11 months ago (1 children)

Same model, different device id. It happens.

No, that's a marketing issue. Different device id == different model, technically speaking. Hardware makers won't just alter a device ID for no reason at all.

There are tons more of device IDs out there that don’t work on Linux than those ones that do.

Perhaps, but [citation needed].

No, you can’t just use any random fingerprint reader which totally works on Windows.

First of all, no one is going out and buying random fingerprint readers - these are usually bundled as part of their laptop/desktop - in which case, it's the buyer's responsibility to verify Linux compatibility with that computer as a whole. You can't expect to pop Linux into any random computer, or connect any random peripheral and just expect everything to work automagically. I mean, it does happen, but that's generally with known good Linux hardware. Eg System76s, Frameworks, ThinkPads etc.

Also, even on Windows, a fingerprint reader doesn't normally work out of the box - you'll need to install the drivers for it to get it going (unless of course you're using a Windows build provided out-of-the-box by the system manufacturer). Either way, it's manufacturer's responsibility to create and upload drivers, and it's their responsibility to create a Linux driver. Otherwise it's up to the community to create it, in which case you're back to usual rule-of-thumb where you buy only popular hardware models with known good Linux support.

[–] [email protected] 1 points 11 months ago

Perhaps, but [citation needed].

Ha, I mean if you think there are only 200 different device IDs for fingerprint readers, go ahead and believe that.

it’s the buyer’s responsibility to verify Linux compatibility with that computer as a whole.

That's the exact problem.

You can’t expect to pop Linux into any random computer, or connect any random peripheral and just expect everything to work automagically.

Exactly, hobby project problems. I enjoy a good Linux computer hobby project but I also leave hobby projects in the hobby project section my life. When I want to get work done, I use the thing that lets me get work done.

Also, even on Windows, a fingerprint reader doesn’t normally work out of the box - you’ll need to install the drivers for it to get it going (unless of course you’re using a Windows build provided out-of-the-box by the system manufacturer)

(Most do, you can submit your driver to Microsoft to be included in the system update system.)

Either way, it’s manufacturer’s responsibility to create and upload drivers, and it’s their responsibility to create a Linux driver. Otherwise it’s up to the community to create it, in which case you’re back to usual rule-of-thumb where you buy only popular hardware models with known good Linux support.

Right, as hobbyists building drivers for their hobbyist's projects.

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