[mythtv] dvbchannel patch

[Daniel Kristjansson]

On Tue, 2005-08-30 at 00:46 +0100, Mark Weaver wrote:
> Without this, changing channels fairly frequently locks up -- the 
> attached backtrace & backend log with -v siparser,channel,record are 
> attached.
I've been waiting on confirmation from someone with DisEqC before
applying this patch. It seems to help OFDM and ATSC users, but it
significantly changes how DisEqC works so I'd really like someone
to confirm that it actually works...

-- Daniel