KWorld UB435-Q USB ATSC, found but not registring.

I have a KWorld UB435-Q USB v3 ATSC USB stick, known to work proper on a Win PC.

Now I have a Proxmox host and want to pass it to a docker LXC, to pass it to Tvheadend.

When I plugin the stick I get this output:

lsusb:
Bus 001 Device 012: ID 1b80:e34c Afatech UB435-Q ATSC TV Stick

dmesg:
[127871.387031] usb 1-2.2: new high-speed USB device number 12 using xhci_hcd
[127871.487781] usb 1-2.2: New USB device found, idVendor=1b80, idProduct=e34c, bcdDevice= 1.00
[127871.487784] usb 1-2.2: New USB device strings: Mfr=0, Product=1, SerialNumber=2
[127871.487785] usb 1-2.2: Product: USB 2875 Device
[127871.487785] usb 1-2.2: SerialNumber: 1
[127871.489016] em28xx 1-2.2:1.0: New device  USB 2875 Device @ 480 Mbps (1b80:e34c, interface 0, class 0)
[127871.489018] em28xx 1-2.2:1.0: DVB interface 0 found: bulk
[127871.547070] em28xx 1-2.2:1.0: chip ID is em2874
[127872.061202] em28xx 1-2.2:1.0: EEPROM ID = 26 00 01 00, EEPROM hash = 0x5d3e97ab
[127872.061207] em28xx 1-2.2:1.0: EEPROM info:
[127872.061208] em28xx 1-2.2:1.0:       microcode start address = 0x0004, boot configuration = 0x01
[127872.083751] em28xx 1-2.2:1.0:       AC97 audio (5 sample rates)
[127872.083754] em28xx 1-2.2:1.0:       500mA max power
[127872.083755] em28xx 1-2.2:1.0:       Table at offset 0x24, strings=0x206a, 0x048a, 0x0000
[127872.143013] em28xx 1-2.2:1.0: Identified as KWorld USB ATSC TV Stick UB435-Q V3 (card=93)
[127872.143018] em28xx 1-2.2:1.0: dvb set to bulk mode.

But why doesn't it continue with registring the DVB device like in the docs https://www.linuxtv.org/wiki/index.php/KWorld_UB435-Q_USB_ATSC_TV_stick:

[  175.413555] em2874 #0: Binding DVB extension
[  175.422065] i2c i2c-10: tda18212: NXP TDA18212HN successfully identified
[  175.422071] DVB: registering new adapter (em2874 #0)
[  175.422077] usb 2-1: DVB: registering adapter 1 frontend 0 (LG Electronics LGDT3305 VSB/QAM Frontend)...
[  175.423590] em2874 #0: DVB extension successfully initialized
[  175.423594] em28xx: Registered (Em28xx dvb Extension) extension

I assume the device is still supported in the latest kernels?

Replies (4)

RE: KWorld UB435-Q USB ATSC, found but not registring. - Added by Jonas Lang 11 months ago

Looks like it hasn’t found the correct firmware. Make sure you have the correct firmware and it’s put in the correct folder so your stick can find it.

RE: KWorld UB435-Q USB ATSC, found but not registring. - Added by Roger Far 11 months ago

That's what I suspected as it's not showing `em2874`, but showing `em28xx`.

But docs say that support should be in the kernel, where would I find the right firmware?

RE: KWorld UB435-Q USB ATSC, found but not registring. - Added by Jonas Lang 11 months ago

Good question. I see you’ve already asked here https://unix.stackexchange.com/questions/765831/kworld-ub435-q-usb-atsc-found-but-not-registering-as-dvb-device

Maybe a little more searching might turn up an answer. Here’s a thread that appears to be resolved so that may be the route to go https://discourse.osmc.tv/t/kworld-ub435-q-and-vero-4k/91384

Pay particular attention to this thread too. All things are not exactly equal with your USB stick https://www.linuxtv.org/wiki/index.php/KWorld_UB435-Q_USB_ATSC_TV_stick

RE: KWorld UB435-Q USB ATSC, found but not registring. - Added by Roger Far 11 months ago

After some more digging I tried to modprobe dvb_core, and it gave me an error, so after checking, I found that rtl433 was blacklisting dvr_core. Removing that module made it work.

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