Nano Digi USB support

[mrene]

Discussed in #149

^{Originally posted by Martin-By June 13, 2021}
Hi,
I am not profession in linux coding, but could install the executable files within /usr/local/bin.
Running "minidsp" it returns: "Error: No devices found"

The Device is found by system:
lsusb: Bus 003 Device 002: ID 04d8:003f Microchip Technology, Inc. nanoDIGI v2.6

and mapped as hidraw0:
crw-rw-rw- 1 root root 242, 0 Jun 13 11:09 /dev/hidraw0

within "/etc/udev/rules.d" I created a file "50-minidsp_usb.rules"
SUBSYSTEM=="usb", ATTR{idVendor}=="04d8", ATTR{idProduct}=="003f", MODE="0666"

ubuntu@musicserver1:~$ cat /sys/class/hidraw/hidraw0/device/uevent
DRIVER=hid-generic
HID_ID=0003:000004D8:0000003F
HID_NAME=miniDSP LTD. nanoDIGI v2.6
HID_PHYS=usb-0000:00:1d.1-1/input0
HID_UNIQ=
MODALIAS=hid:b0003g0001v000004D8p0000003F

root@musicserver1:/dev/input# minidsp probe
thread 'main' panicked at 'index out of bounds: the len is 2 but the index is 2', protocol/src/commands.rs:575:53
note: run with RUST_BACKTRACE=1 environment variable to display a backtrace

What I am doing wrong with my setup to use minidsp?

My Device: MiniDSP_2x8_nanoDIGI_204
Ubuntu 20.04.2 LTS (GNU/Linux 5.4.0-74-generic x86_64)

[mrene]

This has been added to dev (minus reading the signal levels)