Hello,

I have a Logilink VG0022A stick and when I plug it in I get:

[  426.019171] usb 1-1.3: new high-speed USB device number 5 using xhci-hcd
[  426.171443] usb 1-1.3: New USB device found, idVendor=1d19, idProduct=0100, bcdDevice= 1.00
[  426.172184] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  426.172822] usb 1-1.3: Product: TS Aggregator
[  426.173205] usb 1-1.3: Manufacturer: ITE Tech., Inc.
[  426.173641] usb 1-1.3: SerialNumber: AF0102020700001
[  426.180314] dvb_usb_af9035 1-1.3:1.0: prechip_version=83 chip_version=01 chip_type=9306
[  426.181324] usb 1-1.3: dvb_usb_v2: found a 'Logilink VG0022A' in cold state
[  426.182034] usb 1-1.3: firmware: direct-loading firmware dvb-usb-it9303-01.fw
[  426.182666] usb 1-1.3: dvb_usb_v2: downloading firmware from file 'dvb-usb-it9303-01.fw'
[  426.221915] dvb_usb_af9035 1-1.3:1.0: firmware version=1.4.0.0
[  426.222456] usb 1-1.3: dvb_usb_v2: found a 'Logilink VG0022A' in warm state
[  426.224991] usb 1-1.3: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[  426.225998] dvbdev: DVB: registering new adapter (Logilink VG0022A)
[  426.226551] usb 1-1.3: media controller created
[  426.229845] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered.
[  426.454279] i2c i2c-9: Added multiplexed i2c bus 10
[  426.454726] si2168 9-0067: Silicon Labs Si2168-B40 successfully identified
[  426.455377] si2168 9-0067: firmware version: B 4.0.2
[  426.458522] usb 1-1.3: DVB: registering adapter 0 frontend 0 (Silicon Labs Si2168)...
[  426.460236] dvbdev: dvb_create_media_entity: media entity 'Silicon Labs Si2168' registered.
[  426.469300] si2157 10-0063: Silicon Labs Si2147/2148/2157/2158 successfully attached
[  426.489642] usb 1-1.3: dvb_usb_v2: 'Logilink VG0022A' successfully initialized and connected

which looks fine. But when I try to use it (using mumudvb2) I get:

[  479.915150] si2168 9-0067: firmware: direct-loading firmware dvb-demod-si2168-b40-01.fw
[  479.915871] si2168 9-0067: downloading firmware from file 'dvb-demod-si2168-b40-01.fw'
[  480.436016] si2168 9-0067: firmware version: B 4.0.11
[  480.444089] si2157 10-0063: device is buggy, skipping firmware download
[  480.496756] si2157 10-0063: firmware version: �.�.255

and it fails to tune.

Do you have a hint?

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |