Labbrick: file read on -md doesn't use correct values

[ikstream]

If the -md flag is used with multiple devices connected and an equal number of files provided, the software seems not to stick with a single file.
for example
file 1: file 2:
10, 0 10, 60
10, 60 10, 0
10, 0 10, 60
10, 60 10,0

could lead to
dev1 -> 0dB
dev2 -> 60dB
dev1 -> 0dB
dev2 -> 0dB
.
.
.

only one usage of a wrong attenuation was observed so far

[thuehn]

is this fixed by your last PRs ?

[ikstream]

Unfortunately not. This needs further investigation. But the -mds flag will work like a charm, with files named like the id of the attenuator