downloaded second firmware, since I saw this errors
[ 22.294870] si2168 5-0064: Direct firmware load for dvb-demod-si2168-b40-01.fw failed with error -2
[ 22.299975] si2168 5-0064: Direct firmware load for dvb-demod-si2168-02.fw failed with error -2
[ 22.305064] si2168 5-0064: firmware file 'dvb-demod-si2168-02.fw' not found
[ 22.376204] si2157 6-0060: firmware version: 3.0.5
[ 22.402843] si2168 5-0064: Direct firmware load for dvb-demod-si2168-b40-01.fw failed with error -2
[ 22.408178] si2168 5-0064: Direct firmware load for dvb-demod-si2168-02.fw failed with error -2
[ 22.413536] si2168 5-0064: firmware file 'dvb-demod-si2168-02.fw' not found
downloaded them with
wget https://github.com/LibreELEC/dvb-firmware/raw/master/firmware/dvb-demod-si2168-b40-01.fw
wget https://github.com/LibreELEC/dvb-firmware/raw/master/firmware/dvb-demod-si2168-02.fw
tuner doestn work still
as you adviced I installed tree, now the new results:
dmesg |egrep "firmware|dvb|frontend|usb"
[ 0.000000] psci: PSCIv1.0 detected in firmware.
[ 1.511408] usbcore: registered new interface driver usbfs
[ 1.511520] usbcore: registered new interface driver hub
[ 1.511653] usbcore: registered new device driver usb
[ 2.095923] phy phy-ff450000.syscon:usb2-phy@100.0: Looking up phy-supply from device tree
[ 2.096041] vcc_host1_5v: could not add device link phy-ff450000.syscon:usb2-phy@100.0 err -2
[ 2.096573] phy phy-ff450000.syscon:usb2-phy@100.1: Looking up phy-supply from device tree
[ 2.096679] vcc_host1_5v: could not add device link phy-ff450000.syscon:usb2-phy@100.1 err -2
[ 2.097156] phy phy-ff450000.syscon:usb2-phy@100.1: Looking up vbus-supply from device tree
[ 2.097179] phy phy-ff450000.syscon:usb2-phy@100.1: Looking up vbus-supply property in node /syscon@ff450000/usb2-phy@100/otg-port failed
[ 2.097204] phy phy-ff450000.syscon:usb2-phy@100.1: Failed to get VBUS supply regulator
[ 2.098353] rockchip-u3phy ff470000.usb3-phy: Looking up vbus-supply from device tree
[ 2.098378] rockchip-u3phy ff470000.usb3-phy: Looking up vbus-supply property in node /usb3-phy@ff470000 failed
[ 2.098403] rockchip-u3phy ff470000.usb3-phy: Failed to get VBUS supply regulator
[ 2.098879] phy phy-ff470000.usb3-phy.2: Looking up phy-supply from device tree
[ 2.098899] phy phy-ff470000.usb3-phy.2: Looking up phy-supply property in node /usb3-phy@ff470000/utmi@ff470000 failed
[ 2.099311] phy phy-ff470000.usb3-phy.3: Looking up phy-supply from device tree
[ 2.099331] phy phy-ff470000.usb3-phy.3: Looking up phy-supply property in node /usb3-phy@ff470000/pipe@ff478000 failed
[ 2.101082] rockchip-u3phy ff470000.usb3-phy: Rockchip u3phy initialized successfully
[ 2.316009] usbcore: registered new interface driver udl
[ 2.508740] usbcore: registered new interface driver cdc_ether
[ 2.517547] usbcore: registered new interface driver rndis_host
[ 2.528368] phy phy-ff470000.usb3-phy.2: u3phy u2 power on
[ 2.536997] phy phy-ff470000.usb3-phy.3: u3phy u3 power on
[ 2.546588] dwc2 ff580000.usb: Looking up vusb_d-supply from device tree
[ 2.546612] dwc2 ff580000.usb: Looking up vusb_d-supply property in node /usb@ff580000 failed
[ 2.546633] ff580000.usb supply vusb_d not found, using dummy regulator
[ 2.555234] dwc2 ff580000.usb: Looking up vusb_a-supply from device tree
[ 2.555255] dwc2 ff580000.usb: Looking up vusb_a-supply property in node /usb@ff580000 failed
[ 2.555272] ff580000.usb supply vusb_a not found, using dummy regulator
[ 2.576177] dwc2 ff580000.usb: DWC OTG Controller
[ 2.584234] dwc2 ff580000.usb: new USB bus registered, assigned bus number 1
[ 2.592445] dwc2 ff580000.usb: irq 44, io mem 0xff580000
[ 2.600599] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 2.608616] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 2.616602] usb usb1: Product: DWC OTG Controller
[ 2.624288] usb usb1: Manufacturer: Linux 4.4.167-1169-rockchip-ayufan-g3cde5c624c9c dwc2_hsotg
[ 2.632500] usb usb1: SerialNumber: ff580000.usb
[ 2.683496] ehci-platform ff5c0000.usb: EHCI Host Controller
[ 2.691492] ehci-platform ff5c0000.usb: new USB bus registered, assigned bus number 2
[ 2.699559] ehci-platform ff5c0000.usb: irq 45, io mem 0xff5c0000
[ 2.718260] ehci-platform ff5c0000.usb: USB 2.0 started, EHCI 1.00
[ 2.726243] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
[ 2.733996] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 2.741762] usb usb2: Product: EHCI Host Controller
[ 2.749259] usb usb2: Manufacturer: Linux 4.4.167-1169-rockchip-ayufan-g3cde5c624c9c ehci_hcd
[ 2.757300] usb usb2: SerialNumber: ff5c0000.usb
[ 2.797676] ohci-platform ff5d0000.usb: Generic Platform OHCI controller
[ 2.806073] ohci-platform ff5d0000.usb: new USB bus registered, assigned bus number 3
[ 2.814488] ohci-platform ff5d0000.usb: irq 46, io mem 0xff5d0000
[ 2.882583] usb usb3: New USB device found, idVendor=1d6b, idProduct=0001
[ 2.890856] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 2.899175] usb usb3: Product: Generic Platform OHCI controller
[ 2.907376] usb usb3: Manufacturer: Linux 4.4.167-1169-rockchip-ayufan-g3cde5c624c9c ohci_hcd
[ 2.916029] usb usb3: SerialNumber: ff5d0000.usb
[ 2.978112] usb usb4: New USB device found, idVendor=1d6b, idProduct=0002
[ 2.986785] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 2.995463] usb usb4: Product: xHCI Host Controller
[ 3.003994] usb usb4: Manufacturer: Linux 4.4.167-1169-rockchip-ayufan-g3cde5c624c9c xhci-hcd
[ 3.013041] usb usb4: SerialNumber: xhci-hcd.8.auto
[ 3.022352] usb 1-1: new high-speed USB device number 2 using dwc2
[ 3.023690] usb usb5: We don't know the algorithms for LPM for this host, disabling LPM.
[ 3.023873] usb usb5: New USB device found, idVendor=1d6b, idProduct=0003
[ 3.023883] usb usb5: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 3.023892] usb usb5: Product: xHCI Host Controller
[ 3.023901] usb usb5: Manufacturer: Linux 4.4.167-1169-rockchip-ayufan-g3cde5c624c9c xhci-hcd
[ 3.023908] usb usb5: SerialNumber: xhci-hcd.8.auto
[ 3.026985] usbcore: registered new interface driver iforce
[ 3.027101] usbcore: registered new interface driver xpad
[ 3.027663] usbcore: registered new interface driver usbtouchscreen
[ 3.072859] usbcore: registered new interface driver uvcvideo
[ 3.079743] usbcore: registered new interface driver bfusb
[ 3.079842] usbcore: registered new interface driver btusb
[ 3.159787] of_get_named_gpiod_flags: parsed 'gpios' property of node '/switches/usb-switch[0]' - status (0)
[ 3.169130] usbcore: registered new interface driver usbhid
[ 3.169133] usbhid: USB HID core driver
[ 3.173699] usbcore: registered new interface driver snd-usb-audio
[ 3.334382] usb 5-1: new SuperSpeed USB device number 2 using xhci-hcd
[ 3.351485] usb 5-1: New USB device found, idVendor=152d, idProduct=1561
[ 3.351497] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3.351505] usb 5-1: Product: SABRENT
[ 3.351513] usb 5-1: Manufacturer: SABRENT
[ 3.351522] usb 5-1: SerialNumber: DB9876543214E
[ 4.581839] usbcore: registered new interface driver usb-storage
[ 4.595416] usbcore: registered new interface driver uas
[ 4.610997] usb 1-1: New USB device found, idVendor=0b48, idProduct=3014
[ 4.614658] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 4.618328] usb 1-1: Product: TechnoTrend USB-Stick
[ 4.621777] usb 1-1: Manufacturer: CityCom GmbH
[ 4.625247] usb 1-1: SerialNumber: 20131128
[ 9.718299] usb 1-1: dvb_usb_v2: found a 'TechnoTrend TVStick CT2-4400' in warm state
[ 9.729006] usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[ 9.749426] usb 1-1: dvb_usb_v2: MAC address: bc:ea:2b:44:0d:b2
[ 9.796889] usb 1-1: DVB: registering adapter 0 frontend 0 (Silicon Labs Si2168)...
[ 9.810256] rc rc0: TechnoTrend TVStick CT2-4400 as /devices/platform/ff580000.usb/usb1/1-1/rc/rc0
[ 9.817079] input: TechnoTrend TVStick CT2-4400 as /devices/platform/ff580000.usb/usb1/1-1/rc/rc0/input2
[ 9.826062] rc rc0: lirc_dev: driver dvb_usb_dvbsky registered at minor = 0, scancode receiver, no transmitter
[ 9.831715] usb 1-1: dvb_usb_v2: schedule remote query interval to 300 msecs
[ 9.837133] usb 1-1: dvb_usb_v2: 'TechnoTrend TVStick CT2-4400' successfully initialized and connected
[ 9.842968] usbcore: registered new interface driver dvb_usb_dvbsky
[ 19.825398] si2168 5-0064: downloading firmware from file 'dvb-demod-si2168-b40-01.fw'
[ 21.527271] si2168 5-0064: firmware version: 4.0.25
[ 21.590486] si2157 6-0060: firmware version: 3.0.5
root@rockNAS64:~# tree /dev/dvb
/dev/dvb
`-- adapter0
|-- demux0
|-- dvr0
|-- frontend0
`-- net0
1 directory, 4 files
root@rockNAS64:~# dvb-fe-tool && dvb-fetool -g
-bash: dvb-fe-tool: command not found