[mythtv] Re: Re: Re: pvr-350 performance patch - simplified

[John Harvey]

Yes there were other changes to the ioctl's so we do need to be careful
adding the new header file since I think code compiled with the new header
won't work with 0.1.9.


John

> -----Original Message-----
> From: mythtv-dev-bounces at mythtv.org [mailto:mythtv-dev-bounces at mythtv.org]
> On Behalf Of Isaac Richards
> Sent: 04 February 2005 06:20
> To: Development of mythtv
> Subject: Re: [mythtv] Re: Re: Re: pvr-350 performance patch - simplified
> 
> On Friday 04 February 2005 12:45 am, David Engel wrote:
> > On Thu, Feb 03, 2005 at 11:27:06PM -0500, Isaac Richards wrote:
> > > On Thursday 03 February 2005 08:48 pm, David Engel wrote:
> > > > Well, I don't have ivtv installed on the system where I build Myth
> so
> > > > I made the change for my own benefit.  The option to use an external
> > > > ivtv header is still there, though.
> > >
> > > Does this mean we now require an unreleased version of ivtv?
> >
> > No.  Myth will query fpr the running driver version at device open
> > time.  If the version is 0.2.0 (or newer), Myth will use the BLT_FILL
> > ioctl, othereise it will use the PREP_FRAME ioctl.  IOW, it will use
> > the appropriate ioctl for the driver actually being used.
> 
> I thought there were a few other ioctl differences between versions - and
> there was an ifdef for freebsd in there (which I don't know if anyone is
> using or it's even valid anymore).
> 
> Isaac
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