Tvheadend

I have got tvheadend installed on a virtual machine with 3 identical USB tuners (Geniatech T230 DVB-T2 TV Stick) which I used on an old setup previously.

I have passed all directly to the vm using esxi 6.7.0 and all 3 show up on the system...

root@tv:~# lsusb
Bus 001 Device 004: ID 0572:c688 Conexant Systems (Rockwell), Inc. Geniatech T230 DVB-T2 TV Stick
Bus 001 Device 003: ID 0572:c688 Conexant Systems (Rockwell), Inc. Geniatech T230 DVB-T2 TV Stick
Bus 001 Device 002: ID 0572:c688 Conexant Systems (Rockwell), Inc. Geniatech T230 DVB-T2 TV Stick
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 003: ID 0e0f:0002 VMware, Inc. Virtual USB Hub
Bus 002 Device 002: ID 0e0f:0003 VMware, Inc. Virtual Mouse
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

root@tv:~# dmesg | grep dvb
[ 5.929893] dvb-usb: found a 'Mygica T230 DVB-T/T2/C' in warm state.
[ 6.182014] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
[ 6.182254] dvbdev: DVB: registering new adapter (Mygica T230 DVB-T/T2/C)
[ 6.182649] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered.
[ 6.298180] dvb-usb: no frontend was attached by 'Mygica T230 DVB-T/T2/C'
[ 6.334190] rc rc0: lirc_dev: driver dvb_usb_cxusb registered at minor = 0, scancode receiver, no transmitter
[ 6.334192] dvb-usb: schedule remote query interval to 100 msecs.
[ 6.334436] dvb-usb: Mygica T230 DVB-T/T2/C successfully initialized and connected.
[ 6.334476] dvb-usb: found a 'Mygica T230 DVB-T/T2/C' in warm state.
[ 6.578108] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
[ 6.579525] dvbdev: DVB: registering new adapter (Mygica T230 DVB-T/T2/C)
[ 6.579795] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered.
[ 6.676453] dvbdev: dvb_create_media_entity: media entity 'Silicon Labs Si2168' registered.
[ 6.681631] rc rc1: lirc_dev: driver dvb_usb_cxusb registered at minor = 1, scancode receiver, no transmitter
[ 6.681632] dvb-usb: schedule remote query interval to 100 msecs.
[ 6.684319] dvb-usb: Mygica T230 DVB-T/T2/C successfully initialized and connected.
[ 6.684427] dvb-usb: found a 'Mygica T230 DVB-T/T2/C' in warm state.
[ 6.934023] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
[ 6.934947] dvbdev: DVB: registering new adapter (Mygica T230 DVB-T/T2/C)
[ 6.935217] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered.
[ 7.002420] dvbdev: dvb_create_media_entity: media entity 'Silicon Labs Si2168' registered.
[ 7.004726] rc rc2: lirc_dev: driver dvb_usb_cxusb registered at minor = 2, scancode receiver, no transmitter
[ 7.004727] dvb-usb: schedule remote query interval to 100 msecs.
[ 7.005715] dvb-usb: Mygica T230 DVB-T/T2/C successfully initialized and connected.
[ 7.005738] usbcore: registered new interface driver dvb_usb_cxusb

root@tv:~# ls -al /dev/dvb/
total 0
drwxr-xr-x 5 root root 100 Dec 8 17:41 .
drwxr-xr-x 19 root root 4320 Dec 8 17:41 ..
drwxr-xr-x 2 root root 100 Dec 8 17:41 adapter0
drwxr-xr-x 2 root root 120 Dec 8 17:41 adapter1
drwxr-xr-x 2 root root 120 Dec 8 17:41 adapter2

However within tvheadend only 2 of these show (see screenshot)

Any idea why this would be? The 2 that show up are all working fine so no issues with firmware, just missing the 3rd.