[mythtv-users] pcHDTV HD-3000 2.0 Drivers

[David Sims]

Here's a diff for the changes I made to the cx88-atsc.c source file in 
the 2.0 driver.

# diff -U 4 cx88-atsc.c.orig cx88-atsc.c
--- cx88-atsc.c.orig    2005-03-20 14:11:27.000000000 -0700
+++ cx88-atsc.c 2005-03-20 15:00:01.000000000 -0700
@@ -466,9 +466,21 @@
                 return 0;
         }
         /* ------ input switching ---------- */
         case VIDIOC_ENUMINPUT:
-               return -ENOIOCTLCMD;
+       {
+               struct v4l2_input *input = arg;
+               if( input->index > 0 ) return -EINVAL;
+               sprintf( input->name, "Television\0" );
+               input->type     = V4L2_INPUT_TYPE_TUNER;
+               input->audioset = 0;
+               input->tuner    = 0;
+               input->std      = V4L2_STD_ATSC_8_VSB;
+               input->status   = 0;
+               memset( input->reserved, 0, 4 );
+/*             return -ENOIOCTLCMD;*/
+               return 0;
+       }
         case VIDIOC_G_INPUT:
         {
                 unsigned int *i = arg;
                 *i = dev->core->input;

On Jun 10, 2005, at 7:31 AM, Blair Preston wrote:

> I've had no luck as yet.  Would LOVE to see you modifications to the 
> Driver.
>
> Thanx David,
>
> -Blair
>
> David Sims (dl.sims at comcast.net) wrote:
>>
>>
>> On Jun 9, 2005, at 8:35 PM, Blair Preston wrote:
>>
>>> First, thanx for the responce Greg.
>>>
>>> Actually, I have Over the Air Digital ATSC (in the States, pulling
>>> from a
>>> Digital Antenna). And the tuner card is actually working as I am able
>>> to pull
>>> up a picture using mplayer /dev/video2 .  The tuner card/driver 
>>> (which
>>> is the
>>> cx88-atsc driver) seems to be working fine.  The issue 'appears' to 
>>> be
>>> something myth related in this kernel/driver configuration.  
>>> Otherwise
>>> I don't
>>> know why I can view  TV from mplayer accessing this tuner card ( I
>>> just have
>>> to change channels by issuing a 'dtvsignal /dev/video2 <channel
>>> number>'
>>> command).  Myth seems to see the card, but can't find the inputs 
>>> (i.e.
>>> Television, Composite, S-Video).  Kinda strange.
>>>
>>> By the way, the same box, booting a 2.6.8 kernel, works fine with
>>> myth, but I
>>> have to use the HD-3000 1.5 drivers to compile on this kernel.
>>>
>>
>> I believe I had this same problem with the 2.0 cx88-atsc driver for 
>> the
>> HD-3000.  I ended up actually modifying the driver itself slightly,
>> because it didn't appear to be responding to the call Myth makes to
>> query the inputs.  All works fine now, but I have hoped to find a way
>> to get it to work without a custom modification to the driver.  If you
>> figure it out please post your findings.  Otherwise I'd be glad to
>> provide the changes I made to the driver if you want to try it.
>>
>> - David
>>
>>
>
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