Hi,

On 9/12/07, Aidan Thornton <[EMAIL PROTECTED]> wrote:
> On 9/12/07, Valerio Bontempi <[EMAIL PROTECTED]> wrote:
> > I can't load the driver with 2.6.18 because I removed openSuse 10.2 some
> > months ago: I should compile and install this version on Ubuntu in order
> to
> > try that if needed.
> > Following I report the /var/log/messages on 2.6.20 using reg_debug=1:
> >
> > Sep 12 11:05:49 gandalf kernel: [ 1635.788000] em28xx v4l2 driver version
> > 0.0.1 loaded
> >  Sep 12 11:05:49 gandalf kernel: [ 1635.904000] em28xx: device is attached
> > to a USB 2.0 bus
> >  Sep 12 11:05:49 gandalf kernel: [ 1635.904000] em28xx: you're using the
> > experimental/unstable tree from mcentral.de
> >
> >  Sep 12 11:05:49 gandalf kernel: [ 1635.904000] em28xx: there's also a
> > stable tree available but which is limited to
> >  Sep 12 11:05:49 gandalf kernel: [ 1635.904000] em28xx: linux <=2.6.19.2
> >  Sep 12 11:05:49 gandalf kernel: [ 1635.904000] em28xx: it's fine to use
> > this driver but keep in mind that it will move
> >  Sep 12 11:05:49 gandalf kernel: [ 1635.904000] em28xx: to
> > http://mcentral.de/hg/~mrec/v4l-dvb-kernel
> >  as soon as it's
> >  Sep 12 11:05:49 gandalf kernel: [ 1635.904000] em28xx: proved to be
> stable
> >  Sep 12 11:05:49 gandalf kernel: [ 1635.904000] em28xx #0: Alternate
> > settings: 8
> >  Sep 12 11:05:49 gandalf kernel: [ 1635.904000] em28xx #0: Alternate
> setting
> > 0, max size= 0
> >  Sep 12 11:05:49 gandalf kernel: [ 1635.904000] em28xx #0: Alternate
> setting
> > 1, max size= 0
> >  Sep 12 11:05:49 gandalf kernel: [ 1635.904000] em28xx #0: Alternate
> setting
> > 2, max size= 1448
> >  Sep 12 11:05:49 gandalf kernel: [ 1635.904000] em28xx #0: Alternate
> setting
> > 3, max size= 2048
> >  Sep 12 11:05:49 gandalf kernel: [ 1635.904000] em28xx #0: Alternate
> setting
> > 4, max size= 2304
> >  Sep 12 11:05:49 gandalf kernel: [ 1635.904000] em28xx #0: Alternate
> setting
> > 5, max size= 2580
> >  Sep 12 11:05:49 gandalf kernel: [ 1635.904000] em28xx #0: Alternate
> setting
> > 6, max size= 2892
> >  Sep 12 11:05:49 gandalf kernel: [ 1635.904000] em28xx #0: Alternate
> setting
> > 7, max size= 3072
> ...snip...
> >  Sep 12 11:05:50 gandalf kernel: [ 1635.952000] EEPROM ID= 0x9567eb1a
> >  Sep 12 11:05:50 gandalf kernel: [ 1635.952000] Vendor/Product ID=
> 0ccd:0043
> >  Sep 12 11:05:50 gandalf kernel: [ 1635.952000] No audio on board.
> >  Sep 12 11:05:50 gandalf kernel: [ 1635.952000] 500mA max power
> >  Sep 12 11:05:50 gandalf kernel: [ 1635.952000] Table at 0x06,
> > strings=0x249e, 0x346a, 0x0000
> ...snip...
> >  Sep 12 11:05:50 gandalf kernel: [ 1635.956000] tuner 2-0061: chip found @
> > 0xc2 (em28xx #0)
> >  Sep 12 11:05:50 gandalf kernel: [ 1635.960000] attach inform (default):
> > detected I2C address c2
> >  Sep 12 11:05:50 gandalf kernel: [ 1635.960000]
> > /usr/local/src/v4l-dvb-kernel
> > /v4l/tuner-core.c: setting tuner callback
> >  Sep 12 11:05:50 gandalf kernel: [ 1635.960000]
> > /usr/local/src/v4l-dvb-kernel/v4l/tuner-core.c: setting
> > tuner callback
>
> I don't see any sign of the xc3028 driver doing anything here, which
> probably isn't a good sign. It doesn't even seem to be getting to the
> stage of trying to load the firmware.
>

yes you're right, could you guys check if tuner-xc3028 is loaded?
lsmod | grep xc3028

Markus

> >  Sep 12 11:05:50 gandalf kernel: [ 1635.972000] em28xx #0: Found Terratec
> > Cinergy T XS
> >  Sep 12 11:05:50 gandalf kernel: [ 1635.976000] usbcore: registered new
> > interface driver em28xx
> >  Sep 12 11:05:50 gandalf kernel: [ 1636.000000] em2880-dvb.c: DVB Init
>
> There ought to be a GPIO write here, but there isn't. It's probably
> related to the problem with the tuner code, since the GPIO write for
> your device is triggered by that.
>
> After looking at the code, it looks like, since your card is DVB-T
> only, the driver doesn't bother setting up the tuner driver for analog
> use. Unfortunately, the em2880-dvb driver uses an analog API
> (VIDIOC_INT_S_TUNER_MODE) to get the xc3028 tuner driver to switch
> modes (and call back into the em28xx driver to do the GPIO twiddling
> that enables the DVB-T demodulator), this is a problem. As a result,
> the GPIO twiddling doesn't get done, communication with the DVB-T
> demodulator fails and the driver bails out.
>
> Edit em28xx_set_tuner in linux/drivers/media/video/em28xx/em28xx-i2c.c
> to remove the "&& dev->dev_modes != EM28XX_DVB" and recompile - things
> should work better. (The reason v4l-dvb-experimental-userptr works is
> that it's based on an older version of the code before this was
> added.)
>
>
> >  Sep 12 11:05:50 gandalf kernel: [ 1636.104000] em28xx #0: [ OK] 40 03 00
> 00
> > 1e 00 01 00 >>> 7f
> >  Sep 12 11:05:50 gandalf kernel: [ 1636.104000] em28xx #0: [ OK] c0 00 00
> 00
> > 05 00 01 00 <<< 10
> >  Sep 12 11:05:50 gandalf kernel: [ 1636.104000]
> > FIXME:em28xx_i2c_send_bytes(1e): write failed:
> >  Sep 12 11:05:50 gandalf kernel: [ 1636.104000]
> > ===============================
> >  Sep 12 11:05:50 gandalf kernel: [ 1636.104000] 7f
> >  Sep 12 11:05:50 gandalf kernel: [ 1636.104000]
> > ================================
>


-- 
Markus Rechberger

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