[mythtv-users] Couldn't open /dev/v4l/video0 to probe its inputs.

[Povl H. Pedersen]

Hi,

I am trying to get MytheTV up and running, but during config I get the
Couldn't open /dev/v4l/video0 to probe its inputs.

add channel Viasat Sport? [yes,no,all,none (default=yes)]
Finished configuration.
You _MUST_ run 'mythfilldatabase --manual the first time, instead
of just 'mythfilldatabase'.  Your grabber does not provide
channel numbers, so you have to set them manually.
Couldn't open /dev/v4l/video0 to probe its inputs.
Segmentation fault


I am on gentoo Linux, more or less patched up on the ~x86 (unstable) fork.

fbtv / xawtv /aplay works.

MPlayer complains unles I force it to use -ao alsa9. But then the errors
disappears.
audio_setup: driver doesn't support SNDCTL_DSP_GETOSPACE :-(

   ***  Your audio driver DOES NOT support select()  ***
Recompile mplayer with #undef HAVE_AUDIO_SELECT in config.h !

Sound is played using ECS K7S5A built-in audio (intel8x0 driver)

Here is the devices (uses devfs)
crw-rw----    1 root     video     81,   0 Jan  1  1970 /dev/v4l/video0
crw-rw----    1 root     video     81, 224 Jan  1  1970 /dev/v4l/vbi0
crw-rw----    1 root     video     81,  64 Jan  1  1970 /dev/v4l/radio0

The card is a Hauppauge WinTV/Radio, and below is all trelevant dmesg output:

btaudio: driver version 0.7 loaded [digital+analog]
btaudio: Bt878 (rev 2) at 00:11.1, irq: 11, latency: 64, mmio: 0xcddff000
btaudio: using card config "default"
btaudio: registered device dsp0 [digital]
btaudio: registered device dsp1 [analog]
btaudio: registered device mixer0
i2c-core.o: i2c core module
Linux video capture interface: v1.00
i2c-algo-bit.o: i2c bit algorithm module
bttv: driver version 0.7.108 loaded
bttv: using 4 buffers with 2080k (8320k total) for capture
bttv: Bt8xx card found (0).
bttv0: Bt878 (rev 2) at 00:11.0, irq: 11, latency: 64, mmio: 0xcddfe000
bttv0: detected: Hauppauge WinTV [card=10], PCI subsystem ID is 0070:13eb
bttv0: using: Hauppauge (bt878) [card=10,autodetected]
bttv0: Hauppauge/Voodoo msp34xx: reset line init [5]
i2c-core.o: adapter bt848 #0 registered as adapter 0.
bttv0: Hauppauge eeprom: model=61344, tuner=Philips FM1216 (5), radio=yes
bttv0: using tuner=5
bttv0: i2c: checking for MSP34xx @ 0x80... found
i2c-core.o: driver i2c msp3400 driver registered.
msp34xx: init: chip=MSP3415D-B3 +nicam +simple
msp3410: daemon started
i2c-core.o: client [MSP3415D-B3] registered to adapter [bt848 #0](pos. 0).
bttv0: i2c: checking for TDA9875 @ 0xb0... not found
bttv0: i2c: checking for TDA7432 @ 0x8a... not found
tvaudio: TV audio decoder + audio/video mux driver
tvaudio: known chips:
tda9840,tda9873h,tda9874h/a,tda9850,tda9855,tea6300,tea642
0,tda8425,pic16c54 (PV951),ta8874z
i2c-core.o: driver generic i2c audio driver registered.
i2c-core.o: driver i2c TV tuner driver registered.
tuner: chip found @ 0xc2
tuner: type set to 5 (Philips PAL_BG (FI1216 and compatibles))
i2c-core.o: client [Philips PAL_BG (FI1216 and comp] registered to adapter
[bt848 #0](pos. 1).
bttv0: PLL: 28636363 => 35468950 .. ok
bttv0: registered device video0
bttv0: registered device vbi0
bttv0: registered device radio0


Loaded modules:
Module                  Size  Used by    Tainted: PF
nvidia               1631264  11  (autoclean)
serial                 48324   0  (autoclean)
parport_pc             27784   1  (autoclean)
lp                      6912   0  (autoclean)
parport                26760   1  (autoclean) [parport_pc lp]
snd-intel8x0           19908   0
snd-pcm                64580   0  [snd-intel8x0]
snd-timer              15876   0  [snd-pcm]
snd-ac97-codec         43480   0  [snd-intel8x0]
snd-mpu401-uart         3712   0  [snd-intel8x0]
snd-rawmidi            15072   0  [snd-mpu401-uart]
snd-seq-device          4416   0  [snd-rawmidi]
snd                    34532   0  [snd-intel8x0 snd-pcm snd-timer
snd-ac97-codec snd-mpu401-uart snd-rawmidi snd-seq-device]
snd-page-alloc          6516   0  [snd-intel8x0 snd-pcm]
tuner                  10728   1  (autoclean)
tvaudio                14152   0  (autoclean) (unused)
msp3400                18240   1  (autoclean)
bttv                   95936   1
i2c-algo-bit            7496   1  [bttv]
videodev                6624   4  [bttv]
i2c-core               13508   0  [tuner tvaudio msp3400 bttv i2c-algo-bit]
btaudio                10780   0
soundcore               4196   3  [snd bttv btaudio]
loop                    9944   0  (autoclean)
tulip                  41312   1
sis900                 13100   0  (unused)
usb-storage            69404   0  (unused)
hid                    21568   0  (unused)
usb-ohci               19520   0  (unused)
uhci                   26668   0  (unused)
ehci-hcd               17732   0  (unused)
usbcore                65228   1  [usb-storage hid usb-ohci uhci ehci-hcd]
lvm-mod                58936   5

Povl H. Pedersen