[linux-dvb] Twinhand Ter-CI lost frontend0 after access, not regaining it after reboot

R A skagerack at gnyrf.net
Sat Feb 4 13:58:41 CET 2006


Have had some very recent problems with a dvb-t card and decrypting, and
thought to share it and see if anyone has any ideas where to go from here?
Using a Twinhand Ter-CI dvb-t card with a CI module for viaccess.

With this setup and standard kernel and 0.8.4 version of vlc,
I was not able to get descrambling working for that setup. Updating drivers
from development dvb&v4l and installing that, + installing cvs version
of vlc,
I was finally able to decode a channel and stream it out with vlc and
all was peachy.
However, after that one channel was first received, I tried to switch
and nothing worked. Figuring card or driver might be stuck, I rebooted.
and now
I cannot get /dev/dvb/adapter0/frontend0 to show up again.It seems to be
that the
DST driver is not able to find any matching device and gives up. Had two
however, so using that for now and only using unscrambled channels. Very
reluctant to
try descrambling with this until I know I wont fry this card as well

Hopefull that someone know any way of getting this to work without
disabling card#2.
Thanx in advance

result regarding loading these from dmesg (first the correct loading,
and then the error after
descrambling once):


Linux video capture interface: v1.00
bttv: driver version 0.9.16 loaded
bttv: using 8 buffers with 2080k (520 pages) each for capture
bttv: Bt8xx card found (0).
ACPI: PCI Interrupt 0000:01:06.0[A] -> GSI 18 (level, low) -> IRQ 169
bttv0: Bt878 (rev 17) at 0000:01:06.0, irq: 169, latency: 64, mmio:
bttv0: detected: Twinhan VisionPlus DVB [card=113], PCI subsystem ID is
bttv0: using: Twinhan DST + clones [card=113,insmod option]
bttv0: gpio: en=00000000, out=00000000 in=00f731ff [init]
bttv0: using tuner=4
bttv0: add subdevice "dvb0"
bt878: AUDIO driver version 0.0.0 loaded
bt878: Bt878 AUDIO function found (0).
ACPI: PCI Interrupt 0000:01:06.1[A] -> GSI 18 (level, low) -> IRQ 169
bt878(0): Bt878 (rev 17) at 01:06.1, irq: 169, latency: 64, memory:
DVB: registering new adapter (bttv0).
dst_get_device_id: Recognise [DTTDIG]

DST type flags : 0x10 firmware version = 2
dst_get_mac: MAC Address=[00:08:ca:13:20:00]
DVB: registering frontend 0 (DST DVB-T)...


Feb  3 17:48:58 arvsele kernel: DVB: registering new adapter (bttv0).
Feb  3 17:48:58 arvsele kernel: frontend_init: Could not find a Twinhan DST.
Feb  3 17:48:58 arvsele kernel: dvb-bt8xx: A frontend driver was not
found for device 109e/0878 subsystem 1822/0001

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