Gentoo, kernel 4.20.3.
I compiled and installed the linked driver.
Although this isn't a long term solution, since I also need to use a cx23885 card.
Still got no channels (w_scan)
edit: It seems i2c calls fail in general on these devices. I guess I'll check the power connector is connected correctly.
modinfo
filename: /lib/modules/4.20.3-gentoo/extra/ddbridge/ddbridge.ko
version: 0.9.37
license: GPL v2
author: Ralph and Marcus Metzler, Metzler Brothers Systementwicklung GbR
description: Digital Devices PCIe Bridge
dmesg:
[ 2895.209505] Digital Devices PCIE bridge driver 0.9.37, Copyright (C) 2010-17 Digital Devices GmbH
[ 2895.210326] ddbridge 0000:04:00.0: device name: Digital Devices Octopus Mini
[ 2895.210509] ddbridge 0000:04:00.0: HW 00010003 REGMAP 00010005
[ 2895.210622] ddbridge 0000:04:00.0: link 0 vendor dd01 device 0005 subvendor dd01 subdevice 0011
[ 2895.212110] ddbridge 0000:04:00.0: XO2 ID 14
[ 2895.323689] ddbridge 0000:04:00.0: Port 0: Link 0, Link Port 0 (TAB 1): DUAL DVB-C/C2/T/T2,ISDB-T
[ 2895.323739] ddbridge 0000:04:00.0: init link 0, input 0, regs 00000200
[ 2895.323760] ddbridge 0000:04:00.0: init link 0, input 1, regs 00000210
[ 2895.324880] ddbridge 0000:04:00.0: Port 1: Link 0, Link Port 1 (TAB 2): NO MODULE
[ 2895.326009] ddbridge 0000:04:00.0: Port 2: Link 0, Link Port 2 (TAB 3): NO MODULE
[ 2895.327121] ddbridge 0000:04:00.0: Port 3: Link 0, Link Port 3 (TAB 4): NO MODULE
[ 2895.328652] ddbridge 0000:04:00.0: 0 netstream channels
[ 2895.328702] dvbdev: DVB: registering new adapter (DDBridge)
[ 2895.328720] dvbdev: DVB: registering new adapter (DDBridge)
[ 2895.329711] attach
[ 2895.329758] is24Mhz = 1
[ 2895.329955] cxd2843: i2c_write error adr 6c data 00
[ 2895.330876] ChipID = C1
[ 2895.627930] ddbridge 0000:04:00.0: DVB: registering adapter 0 frontend 0 (CXD2854 DVB-C/C2 DVB-T/T2 ISDB-T)...
[ 2895.629030] attach
[ 2895.629090] is24Mhz = 1
[ 2895.629284] cxd2843: i2c_write error adr 6d data 00
[ 2895.630179] ChipID = C1
[ 2895.977330] ddbridge 0000:04:00.0: DVB: registering adapter 1 frontend 0 (CXD2854 DVB-C/C2 DVB-T/T2 ISDB-T)...