[linux-dvb] Conexant DVB-T PCI Card Setup

[Chris Egan <lists@limewolf.com>]

I'm having a bit of trouble getting my DVB card to work. I'm hoping
someone here can point me in the right direction.

I've got an OEM card that appears to be based on a Conexant chipset
(i.e. like the newer nova-t cards IIRC). An lspci gives me:

0000:00:09.0 Multimedia video controller: Conexant Winfast TV2000 XP
(rev 05)
0000:00:09.2 Multimedia controller: Conexant: Unknown device 8802 (rev
05)

Looking at the card it's self it's very similar the new nova-t cards and
have the same chips/numbers as far as I can see. So I've assumed for the
moment that I should be able to get it working via the cx88/cx22702
driver stuff.

I've started with a vanilla 2.6.9 kernel and applied the patch set from
here:

http://dl.bytesex.org/patches/2.6.9-rc4-1/All-2.6.9-rc4.diff.gz

The patch applied with out problems and I've configured my kernel to
include the following relevant options:

CONFIG_VIDEO_DEV=m
CONFIG_VIDEO_CX88=m
CONFIG_VIDEO_CX88_DVB=m
CONFIG_DVB=y
CONFIG_DVB_CORE=y
CONFIG_DVB_CX22702=m

The kernel compiles/runs and these modules appear to load via modprobe
(I also modprobe things like i2c support as I think thats required
also).

I did a check of my dmesg output to see if these modules were loaded and
what it thought about the card, the only relevant output I can see is
these lines:

Linux video capture interface: v1.00
cx2388x v4l2 driver version 0.0.4 loaded
ACPI: PCI interrupt 0000:00:09.0[A] -> GSI 17 (level, low) -> IRQ 17
cx88[0]: subsystem: 14f1:0187, board: Conexant DVB-T reference design
[card=19,autodetected]
cx88[0]/0: found at 0000:00:09.0, rev: 5, irq: 17, latency: 165, mmio:
0xd1000000
cx88[0]/0: registered device video0 [v4l2]
cx88[0]/0: registered device vbi0
cx2388x dvb driver version 0.0.4 loaded
ACPI: PCI interrupt 0000:00:09.2[A] -> GSI 17 (level, low) -> IRQ 17
cx88[0]/2: found at 0000:00:09.2, rev: 5, irq: 17, latency: 64, mmio:
0xd2000000cx88[0]/2: cx2388x based dvb card
DVB: registering new adapter (cx88[0]).
DVB: registering frontend 0 (CX22702 Demod Thomson 75xx PLL)...

This suggested to me that everything looked ok so far...

I also got the video4linux-20041108-105732 archive and compiled the
utils so I could scan for channels.

However doing... 

# scan uk-Storeton

..gives me...

scanning uk-Storeton
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
main:1882: FATAL: failed to open '/dev/dvb/adapter0/frontend0': 6 No
such device or address

I've run MAKEDEV-DVB.sh and the devices appear to be there (as in I see 
stuff when I do ls /dev/dvb/adapter0/). I've tried different adapter
numbers (via scan -aX). How do I know which should be the correct
adapter?

I'm going to carry on trying to get this card to work, but I'd
appreciate any suggestions people may have. 

Thanks!

Chris.