Re: IR device at I2C address 0x7a

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Am Sonntag, den 10.01.2010, 09:51 +0100 schrieb Jean Delvare:
> On Sun, 10 Jan 2010 00:18:46 +0100, hermann pitton wrote:
> > Hi,
> > 
> > Am Samstag, den 09.01.2010, 17:14 +0100 schrieb Jean Delvare:
> > > On Sat, 09 Jan 2010 13:08:36 +0100, Daro wrote:
> > > > W dniu 06.01.2010 21:21, Jean Delvare pisze:
> > > > > On Wed, 06 Jan 2010 18:58:58 +0100, Daro wrote:
> > > > >> It is not the error message itself that bothers me but the fact that IR
> > > > >> remote control device is not detected and I cannot use it (I checked it
> > > > >> on Windows and it's working). After finding this thread I thought it
> > > > >> could have had something to do with this error mesage.
> > > > >> Is there something that can be done to get my IR remote control working?
> > > > > You could try loading the saa7134 driver with option card=146 and see
> > > > > if it helps.
> > > >
> > > > It works!
> > > > 
> > > > [   15.477875] input: saa7134 IR (ASUSTeK P7131 Analo as 
> > > > /devices/pci0000:00/0000:00:1e.0/0000:05:00.0/input/input8
> > > > 
> > > > Thank you very much fo your help.
> > > 
> > > Then I would suggest the following patch:
> > > 
> > > * * * * *
> > > 
> > > From: Jean Delvare <khali@xxxxxxxxxxxx>
> > > Subject: saa7134: Fix IR support of some ASUS TV-FM 7135 variants
> > > 
> > > Some variants of the ASUS TV-FM 7135 are handled as the ASUSTeK P7131
> > > Analog (card=146). However, by the time we find out, some
> > > card-specific initialization is missed. In particular, the fact that
> > > the IR is GPIO-based. Set it when we change the card type.
> > > 
> > > Signed-off-by: Jean Delvare <khali@xxxxxxxxxxxx>
> > > Tested-by: Daro <ghost-rider@xxxxxxxx>
> > 
> > just to note it, the ASUS TV-FM 7135 with USB remote is different to the
> > Asus My Cinema P7134 Analog only, not only for the remote, but also for
> > inputs, but they have the same PCI subsystem.
> > 
> > > ---
> > >  linux/drivers/media/video/saa7134/saa7134-cards.c |    1 +
> > >  1 file changed, 1 insertion(+)
> > > 
> > > --- v4l-dvb.orig/linux/drivers/media/video/saa7134/saa7134-cards.c	2009-12-11 09:47:47.000000000 +0100
> > > +++ v4l-dvb/linux/drivers/media/video/saa7134/saa7134-cards.c	2010-01-09 16:23:17.000000000 +0100
> > > @@ -7257,6 +7257,7 @@ int saa7134_board_init2(struct saa7134_d
> > >  		       printk(KERN_INFO "%s: P7131 analog only, using "
> > >  						       "entry of %s\n",
> > >  		       dev->name, saa7134_boards[dev->board].name);
> > > +			dev->has_remote = SAA7134_REMOTE_GPIO;
> > >  	       }
> > >  	       break;
> > >  	case SAA7134_BOARD_HAUPPAUGE_HVR1150:
> > > 
> > > 
> > > * * * * *
> > 
> > Must have been broken at that time, IIRC.
> 
> What must have been broken, and when? You are confusing.

Sorry, I missed that thread until now.
The above patch was tried previously by Roman.

For the record, here is a link.
http://www.spinics.net/lists/vfl/msg38869.html

> > Only moving saa7134_input_init1(dev) to static int saa7134_hwinit2
> > in saa7134-core.c did help, AFAIK, but I might be wrong.

Maybe some regression was involved for him, at least I followed his
assumption, that in case of auto detection, when first a board without
remote is detected, and then that late is switched to another board with
remote through eeprom detection, input_init1 would not happen again.

> I admit I don't quite get why dev->has_remove should be set early (in
> saa7134_board_init1) given that for one board
> (SAA7134_BOARD_FLYDVB_TRIO) it is set later (in saa7134_board_init2)
> and apparently it works OK. It would make more sense to do it at the
> same time for all boards IMHO, possibly in a separate function to make
> it clearer.
> 
> I am also curious if it wouldn't be even clearer and more efficient to
> store the default value of has_remote in struct saa7134_board. As far
> as I can see, only the SAA7134_BOARD_FLYDVB_TRIO needs a run-time check.

Patches are welcome.

Thanks,
Hermann



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