On 19/01/2026 19:55, [email protected] wrote:
On Mon, Jan 19, 2026 at 07:01:25PM +0100, Bernard wrote:
Hi to Everyone,
I’ve been using this temperature recorder for a number of years. To get it
to work on Debian, I had to install a program with Python, according to a
doc I had found. This generated a directory named elitech-datareader-1.0.5,
which provides commands to program the recorder as well to recuperate
recorded data. I still have this on my Debian 11 system, and it still works.
Problem is : over time, the recorder became wet inside, so I decided to buy
a new one of the same model. The new one I received is exactly the same
RC-5… but it appears that the software has changed : it no longer works on
my system. The elitech site only proposes software for Windows and Mac…, but
it said the same thing in the old days (maybe 2017) at the time I had found
what still works on my old RC-5.
The old RC-5 is an USB device. Whenever plugged into a usb port :
$ lsusb
Bus 001 Device 088: ID 1a86:7523 QinHeng Electronics CH340 serial
converter
If I replace the old RC-5 by the new one, the above line disappears for the
lsusb output, but another line appears instead :
Bus 001 Device 089: ID 246c:9001 FMSH MSC+HID
[...]
You might want to do "sudo dmesg | tail" shortly after inserting the device
(say a couple of seconds or five). Perhaps that allows us to see what the
kernel is making of this. Poking around in the Intratubes suggests that this
is a "combined USB device" offering a storage and a HID (that's the MSC+HID)
interface.
Cheers
Thanks for your reply. Below is the result of the suggested test. I have
also ckecked /dev/usb/
bd@debian-stretch:~$ sudo dmesg | tail
[550017.843525] sd 5:0:0:0: [sdd] 256 512-byte logical blocks: (131
kB/128 KiB)
[550017.843833] sd 5:0:0:0: [sdd] Write Protect is off
[550017.843838] sd 5:0:0:0: [sdd] Mode Sense: 00 00 00 00
[550017.844131] sd 5:0:0:0: [sdd] Asking for cache data failed
[550017.844138] sd 5:0:0:0: [sdd] Assuming drive cache: write through
[550017.844149] sdd: detected capacity change from 0 to 131072
[550017.862903] sdd: detected capacity change from 0 to 131072
[550017.871806] sdd:
[550017.890693] sdd: detected capacity change from 0 to 131072
[550017.890706] sd 5:0:0:0: [sdd] Attached SCSI removable disk
another test below :
$ cd /dev
$ ls -lt
dev/
crw-rw-rw- 1 root tty 5, 2 22 janv. 16:19 ptmx
brw-rw---- 1 root disk 8, 48 22 janv. 16:18 sdd
drwxr-xr-x 2 root root 360 22 janv. 16:18 block
drwxr-xr-x 7 root root 140 22 janv. 16:18 disk
drwxr-xr-x 2 root root 3520 22 janv. 16:18 char
crw-rw---- 1 root disk 21, 4 22 janv. 16:18 sg4
drwxr-xr-x 2 root root 140 22 janv. 16:18 bsg
crw------- 1 root root 248, 1 22 janv. 16:18 hidraw1
drwxr-xr-x 2 root root 60 22 janv. 16:18 usb
crw-rw-rw- 1 root tty 5, 0 22 janv. 16:05 tty
$ dev/
$ cd usb
$ dev/usb$
$ ls -lt
$ dev/usb$
$ ls -lt
total 0
crw------- 1 root root 180, 0 22 janv. 16:18 hiddev0
