xen pciback fails to pass device to domU

Binary package hint: xen-image-2.6.19-4-generic

The problem is that I am trying to pass my pci capture card (bt878) to domU. I used pciback on the boot cmd line and blacklisted as much bttv stuff as I could.

blacklist is -

# blacklist video drivers
blacklist bttv
blacklist bt878
blacklist snd_bt87x
blacklist dvb_bt8xx

I see a dmesg saying the device is being seized.

[ 0.447738] pciback 0000:02:02.0: seizing device
[ 0.447805] pciback 0000:02:02.1: seizing device

But when I bring up the guest I get this in the dom0 dmesg

pciback: vpci: 0000:02:02.0: assign to virtual slot 0
pciback pci-1-0: 22 Couldn't locate PCI device (0000:02:02.0)! perhaps already in-use?

lsmod is -

Module Size Used by
xt_physdev 4112 1
iptable_filter 4096 1
ip_tables 15204 1 iptable_filter
loop 18568 4
x_tables 17412 2 xt_physdev,ip_tables
binfmt_misc 13320 1
rfcomm 43544 0
l2cap 27136 5 rfcomm
bluetooth 59620 4 rfcomm,l2cap
bridge 62236 1 xt_physdev
i915 21632 2
drm 83476 3 i915
ppdev 10628 0
capability 6024 0
commoncap 8704 1 capability
acpi_cpufreq 9160 1
cpufreq_stats 7744 0
cpufreq_ondemand 9740 2
freq_table 6048 3 acpi_cpufreq,cpufreq_stats,cpufreq_ondemand
cpufreq_conservative 8968 0
cpufreq_powersave 2944 0
cpufreq_userspace 5664 0
container 5504 0
video 17540 0
sbs 16676 0
i2c_ec 6144 1 sbs
i2c_core 23936 1 i2c_ec
asus_acpi 17688 0
button 7824 0
battery 11396 0
ac 6404 0
ipv6 269600 14
sbp2 27268 0
lp 12964 0
tsdev 9152 0
snd_hda_intel 21784 1
snd_hda_codec 172288 1 snd_hda_intel
snd_pcm_oss 47360 0
snd_mixer_oss 18432 1 snd_pcm_oss
snd_pcm 85508 3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_seq_dummy 4996 0
snd_seq_oss 36352 0
snd_seq_midi 9984 0
snd_rawmidi 26880 1 snd_seq_midi
snd_seq_midi_event 8960 2 snd_seq_oss,snd_seq_midi
snd_seq 58480 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_mid i_event
snd_timer 25092 2 snd_pcm,snd_seq
snd_seq_device 9612 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi ,snd_seq
shpchp 40224 0
pci_hotplug 34752 1 shpchp
serial_core 23936 0
serio_raw 8452 0
intel_agp 26780 1
parport_pc 42212 1
parport 39496 3 ppdev,lp,parport_pc
pcspkr 4352 0
snd 58500 12 snd_hda_intel,snd_hda_codec,snd_pcm_oss,snd_mixer_ oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_ti mer,snd_seq_device
agpgart 36168 3 drm,intel_agp
psmouse 41480 0
soundcore 9312 1 snd
af_packet 24840 2
snd_page_alloc 11400 2 snd_hda_intel,snd_pcm
evdev 11520 1
ext3 144008 3
jbd 63272 1 ext3
mbcache 10244 1 ext3
sg 37788 0
sd_mod 23040 10
generic 6532 0 [permanent]
ata_piix 17160 7
ehci_hcd 35208 0
ohci1394 37552 0
ieee1394 304184 2 sbp2,ohci1394
floppy 58916 0
e1000 128448 0
ata_generic 8452 0
libata 113556 2 ata_piix,ata_generic
scsi_mod 144908 4 sbp2,sg,sd_mod,libata
uhci_hcd 26504 0
usbcore 144644 3 ehci_hcd,uhci_hcd
raid1 26880 3
md_mod 84500 5 raid1
thermal 15624 0
processor 32328 2 acpi_cpufreq,thermal
fan 5892 0

however, I still see a listing in lspci for the card

00:00.0 Host bridge: Intel Corporation 82945G/GZ/P/PL Memory Controller Hub (rev 02)
00:02.0 VGA compatible controller: Intel Corporation 82945G/GZ Integrated Graphics Controller (rev 02)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 01)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #1 (rev 01)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #2 (rev 01)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #3 (rev 01)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #4 (rev 01)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GH (ICH7DH) LPC Interface Bridge (rev 01)
00:1f.2 IDE interface: Intel Corporation 82801GB/GR/GH (ICH7 Family) Serial ATA Storage Controller IDE (rev 01)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01)
01:00.0 Ethernet controller: Intel Corporation 82573L Gigabit Ethernet Controller
02:02.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)
02:02.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)
02:04.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host Controller (rev 80)