[linux-dvb] [BUG] changeset 9029 (http://linuxtv.org/hg/v4l-dvb/rev/aa3e5cc1d833)
stoth at linuxtv.org
Mon Feb 16 20:15:12 CET 2009
Steven Toth wrote:
>> Hartmut, Oliver and Trent: Thanks for helping with this issue. I've just
>> reverted the changeset. We still need a fix at dm1105, au0828-dvb and
>> other drivers that call the filtering routines inside IRQ's.
> Fix the demux, add a worker thread and allow drivers to call it directly.
> I'm not a big fan of videobuf_dvb or having each driver do it's own
> thing as an alternative.
> Fixing the demux... Would this require and extra buffer copy? probably,
> but it's a trade-off between the amount of spent during code management
> on a driver by driver basis vs wrestling with videobuf_dvb and all of
> problems highlighted on the ML over the last 2 years.
> Then deprecate sw_filter....N() methods.
> That would simplify drivers significantly, at the expense of another
> buffer copy while deliver-payload() clones the buffer into its internal
> state to be more timely.
I meant to add...
The cx18 and a few other smaller drivers (flexcop?) dvb drivers also call
directly. cx23885/cx88 does not.
More information about the linux-dvb