Sorry at first for moderators for digging arch topics. I see that is obsolete thread. If you recommend creating new one I'il do.
I have working frontend for saa7231 that tune into dvb-s/s2. Yet I need some clarifications regarding those card.
You, exactly you! 
You can help! Provide similar output, at first it'll be enough
kernel 7.2.0
Code
shirley ~ # lspci -s 02:00.0 -vvv
02:00.0 Multimedia controller: Philips Semiconductors SAA7231 (rev ca)
Subsystem: Creatix Polymedia GmbH Device 0012
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupts: pin B routed to IRQ 16
IOMMU group: 15
Region 0: Memory at f6c00000 (64-bit, non-prefetchable) [size=4M]
Region 2: Memory at f6800000 (64-bit, non-prefetchable) [size=4M]
Capabilities: [40] MSI: Enable- Count=1/16 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [50] Express (v1) Endpoint, IntMsgNum 0
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <256ns, L1 <1us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 25W TEE-IO-
DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
RlxdOrd- ExtTag- PhantFunc- AuxPwr+ NoSnoop+
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr+ TransPend-
LnkCap: Port #1, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <4us, L1 <64us
ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp-
LnkCtl: ASPM Disabled; RCB 64 bytes, LnkDisable- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- FltModeDis-
LnkSta: Speed 2.5GT/s, Width x1
TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt-
Capabilities: [74] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=55mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=2 DScale=0 PME-
Capabilities: [7c] Vendor Specific Information: Len=84 <?>
Capabilities: [100 v1] Vendor Specific Information: ID=0000 Rev=0 Len=094 <?>
Kernel driver in use: saa7231_ctx1924
Kernel modules: saa7231_ctx1924_fe