Re: [PATCH] media: Pinnacle 73e infrared control stopped working since kernel 3.17

[Luis de Bethencourt <luis@debethencourt.com>]

On Tue, Feb 10, 2015 at 11:38:11AM +0100, David Cimbůrek wrote:
> Please include this patch to kernel! It takes too much time for such a
> simple fix!
> 

The patch is simple but why it fixes the issue isn't that simple. Could you
explain why the order of the variables inside the structure is breaking things?

All the uses of the variables inside the structure that I can see are by name.
Not by memory offsets.

Thanks,
Luis

> 
> 2015-01-07 13:51 GMT+01:00 David Cimbůrek <david.cimburek@gmail.com>:
> > No one is interested? I'd like to get this patch to kernel to fix the
> > issue. Can someone here do it please?
> >
> >
> > 2014-12-20 14:36 GMT+01:00 David Cimbůrek <david.cimburek@gmail.com>:
> >> Hi,
> >>
> >> with kernel 3.17 remote control for Pinnacle 73e (ID 2304:0237
> >> Pinnacle Systems, Inc. PCTV 73e [DiBcom DiB7000PC]) does not work
> >> anymore.
> >>
> >> I checked the changes and found out the problem in commit
> >> af3a4a9bbeb00df3e42e77240b4cdac5479812f9.
> >>
> >> In dib0700_core.c in struct dib0700_rc_response the following union:
> >>
> >> union {
> >>     u16 system16;
> >>     struct {
> >>         u8 not_system;
> >>         u8 system;
> >>     };
> >> };
> >>
> >> has been replaced by simple variables:
> >>
> >> u8 system;
> >> u8 not_system;
> >>
> >> But these variables are in reverse order! When I switch the order
> >> back, the remote works fine again! Here is the patch:
> >>
> >>
> >> --- a/drivers/media/usb/dvb-usr/dib0700_core.c    2014-12-20
> >> 14:27:15.000000000 +0100
> >> +++ b/drivers/media/usb/dvb-usr/dib0700_core.c    2014-12-20
> >> 14:27:36.000000000 +0100
> >> @@ -658,8 +658,8 @@
> >>  struct dib0700_rc_response {
> >>      u8 report_id;
> >>      u8 data_state;
> >> -    u8 system;
> >>      u8 not_system;
> >> +    u8 system;
> >>      u8 data;
> >>      u8 not_data;
> >>  };
> >>
> >>
> >> Regards,
> >> David
> --
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