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[linux-dvb] Re: got it working (some feedback for twinhan, 2.6, etc)
>
> What 2.6 kernel did you use?
2.6.0-test11 (note, I didn't test with a 2.4.x kernel)
It's not clear to me whether devfs works at all in 2.6. Here's a snippet
from the kernel config help:
/dev file system support (OBSOLETE) (DEVFS_FS)
Note that devfs has been obsoleted by udev,
<http://www.kernel.org/pub/linux/utils/kernel/hotplug/>.
It has been stripped down to a bare minimum and is only provided for
legacy installations that use its naming scheme which is
unfortunately different from the names normal Linux installations
use.
Does dvb-kernel make use of udev instead of devfs?
I didn't compile my kernel with CONFIG_HOTPLUG.
Couple of other things. I experienced some frontend failures (no such device)
when I tried to load dst.ko in the middle of loading the other modules. If I
loaded dst.ko as the last module, I got better results.
Also, I dont think dvbstream and dvbtune (and likely other apps) do correct
frequency calculations for north america. What worked reliably for
me was to specify the l-band frequency. Here's the calculations:
band : l-band freq
~~~~~~~~~~~~~~~~~~~
DSS : freq-11250
Ku : freq-10750
C : 5150-freq
In dvbstream:dvb_defaults.h, I saw this:
// With a diseqc system you may need different values per LNB. I hope
// no-one ever asks for that :-)
#define SLOF (11700*1000UL)
#define LOF1 (9750*1000UL)
#define LOF2 (10600*1000UL)
maybee these are European standards?
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