I got the PTT button to work now, and also the LED link and transmit works. Here is a log: https://termbin.com/oso7
I used this udev rule:
SUBSYSTEM==“usb”, ATTR{idVendor}==“0c26”, ATTR{idProduct}==“001e”, GROUP=“users”, MODE=“0666”
Which now supplies these permissins, the device 004 is the RC-28:
ls -al /dev/bus/usb/001
totalt 0
drwxr-xr-x 2 root root 160 12 jan 01.41 .
drwxr-xr-x 4 root root 80 1 jan 1970 …
crw-rw-rw- 1 root root 189, 0 30 jan 11.35 001
crw-rw-rw- 1 root root 189, 1 30 jan 11.35 002
crw-rw-rw- 1 root root 189, 2 30 jan 11.42 003
crw-rw-rw-+ 1 root users 189, 3 30 jan 11.42 004
crw-rw-rw- 1 root root 189, 4 30 jan 11.42 005
crw-rw-rw- 1 root root 189, 5 30 jan 11.42 006
I think the important change was the GROUP-command in the rule. But the VFO wheel still does not work. The sensitivity bar in the RC-28 setup also is not adjustable.
I have discovered an issue with the way USB controllers handle Frequency change commands, this is fixed in my development branch, called “kenwood” (which also adds provisional support for Kenwood TS-890) you can try that. by modifying the build script.