[DM41X] Appears as a DM42 when connected on USB

Discussion about the new DM41X calculator
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ecsfang
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[DM41X] Appears as a DM42 when connected on USB

Post by ecsfang » Fri Oct 02, 2020 2:46 pm

When connected to a PC with USB cable, the DM41X appears as a DM42 device:
DM41X.png
DM41X.png (2.34 KiB) Viewed 460 times
Cheers,
Thomas
[35/45/65/67/25/29C/31E/33E/41C|CV|CX/71B/10C/11C/15C/16C/32SII/42S/28S/48GX/49G/35S/DM41X(#00456)]
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grsbanks
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Re: [DM41X] Appears as a DM42 when connected on USB

Post by grsbanks » Fri Oct 02, 2020 4:02 pm

That's just the volume label. You can rename it to whatever you want.
There are only 10 kinds of people in the world: those who understand binary and those who do not.

rprosperi
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Re: [DM41X] Appears as a DM42 when connected on USB

Post by rprosperi » Fri Oct 02, 2020 4:18 pm

Note: If you format the FAT drive using the built-in DMCP menu, the volume name is "DM41X", though it's likely easier to just rename it using your PC or Mac in File Explorer or Finder.

We'll have to check the default set during the shipping prep process, though this is obviously just a cosmetic artifact.

Thanks for noting it though.
--bob p

DM42: β00071 & 00282, DM41X: β00071, DM10L: 071/100

Peet
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Re: [DM41X] Appears as a DM42 when connected on USB

Post by Peet » Thu Oct 15, 2020 12:10 am

My DM41X also appears as a DM42 in the device manager regardless of the FAT name.
Past: HP41CV, HP28S, HP11C - Current: HP35S, HP48G+, DM41X

rprosperi
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Re: [DM41X] Appears as a DM42 when connected on USB

Post by rprosperi » Thu Oct 15, 2020 12:20 am

Peet wrote:
Thu Oct 15, 2020 12:10 am
My DM41X also appears as a DM42 in the device manager regardless of the FAT name.
Interesting observation, will report this to David. Thanks.

But note that this has no functional impact, it does not change how anything behaves.
--bob p

DM42: β00071 & 00282, DM41X: β00071, DM10L: 071/100

ecsfang
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Re: [DM41X] Appears as a DM42 when connected on USB

Post by ecsfang » Tue Oct 20, 2020 9:24 am

Just another observation, when I connected the DM41X to a Linux machine it showed up correctly as "DM41X", and after that it also shows up as "DM41X" on my Windows machine (where it first appeared as "DM42").

So, without me doing anything (no reformatting or changing name), the device has "renamed" itself and shows up correctly.
For me it apparently was the the first few times when it was connected to a Windows machine that it showed up as "DM42".

Note that I don't have any DM42, so the name must have come from the device - not an old name residing in the PC.

Don't ask me how, but similar to Schrödingers cat, apparently both name existed in the calculator - but it have now settled with "DM41X" ... ;)

Again - no harm done - just an observation ... ;)

Cheers,
Thomas
[35/45/65/67/25/29C/31E/33E/41C|CV|CX/71B/10C/11C/15C/16C/32SII/42S/28S/48GX/49G/35S/DM41X(#00456)]
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EM41
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Re: [DM41X] Appears as a DM42 when connected on USB

Post by EM41 » Tue Oct 20, 2020 6:52 pm

In my case in linux.

DM41Xβ shows as SwissMicDM42 in the device overview and as DM41X on the desktop
DM41X shows as SwissMicDM42:DM41X in the device overview and as DM41X on the desktop
Dm42 shows as SwissMicDM42 in the device overview and as DM42 on the desktop

(The beta has a reformatted/flashed DM42 board because of a defective board change)

In disk management they all show as SwissMicDM42 (2.71)
So my guess its the disk model hardcoded in some part of the chip or its controller and the operating system of the host pc sometimes doesn't know how to show the thing correct.
In linux you can go to /media/your username as root and delete devices that you unplugged and are still present causing these problems
In windows there is probably also a method.

Not a defect or bug because a USB stick without label also shows up as its brand name.
HP41C (2x), HP41CV, HP41CX, DM41X β, DM41X, DM42, HP11C, HP48G, HP97

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