[linux-dvb] Re: Driver problem with SuSE 7.2

[Klaus Schmidinger <Klaus.Schmidinger@cadsoft.de>]

Rainer Zocholl wrote:
> 
> Klaus.Schmidinger@cadsoft.de(Klaus Schmidinger)  29.09.01 15:48
> 
> Once upon a time Klaus Schmidinger shaped the electrons to say...
> 
> >>
> >>>Today I have made several experiments to further track down this
> >>>problem and found that by simply loading the two modules
> >>
> >>>  i2c_core
> >>>  saa7146_code.o
> >>
> >>>the system became unstable. i2c_core by itself doesn't cause any
> >>>problems, and also installing all of the modules VES1893.o,
> >>>VES1820.o, tda8083.o, stv0299.o and tuner.o (which all use i2c_core)
> >>>doesn't cause problems.
> >>
> >>>Now the question is: is i2c_core or saa7146_code.o the troublemaker?
> >>
> >> Which version are those i2c-drivers?
> >>
> >> Did you use i2c 2.6.1?
> 
> >It's the version that comes with SuSE 7.2, and it doesn't give any
> >version information when loading:
> 
> >   root@fox:/home/franz/vdr/DVB/driver > insmod i2c-core
> >   Using /lib/modules/2.4.4-4GB/kernel/drivers/i2c/i2c-core.o
> >   root@fox:/home/franz/vdr/DVB/driver > tail /var/log/messages
> >   ...
> >   Sep 29 15:43:27 fox kernel: i2c-core.o: i2c core module
> 
> >Maybe this helps:
> 
> >   franz@fox:/usr/src/linux > ls -l drivers/i2c/i2c-core.c
> >   -rw-r--r--    1 franz    users       37877 May 15 19:39
> >drivers/i2c/i2c-core.c    franz@fox:/usr/src/linux > sum
> >drivers/i2c/i2c-core.c    63063    37
> 
> in my kernel tree i find
> /* $Id: i2c-core.c,v 1.58 2000/10/29 22:57:38 frodo Exp $ */
> 
> msi:~/video/VDR# grep "\$Id" /usr/src/linux-2.4.*/drivers/i2c/i2c-core.c
> /usr/src/linux-2.4.10/drivers/i2c/i2c-core.c:/* $Id: i2c-core.c,v 1.58 2000/10/29 22:57:38 frodo Exp $ */
> /usr/src/linux-2.4.8/drivers/i2c/i2c-core.c:/* $Id: i2c-core.c,v 1.58 2000/10/29 22:57:38 frodo Exp $ */
> /usr/src/linux-2.4.9/drivers/i2c/i2c-core.c:/* $Id: i2c-core.c,v 1.58 2000/10/29 22:57:38 frodo Exp $ */
> 
> msi:~/video/I2C/kernel# sum
> 32505    36 /usr/src/linux-2.4.10/drivers/i2c/i2c-core.c
> 32505    36 /usr/src/linux-2.4.8/drivers/i2c/i2c-core.c
> 
> That seems to be something different.
> (That are  "original" kernels from kernel.org.)
> 
> but:
>  i am running ( i hope.. why there is
> an info-field in the module header, and only authors eMail address
> is allowed there. Not very "transparent".)
> 
> /* $id: i2c-core.c,v 1.64 2001/08/13 01:35:56 mds exp $ */
> 
> took from the i2c-2.6.1 package
> 
> >this is all very odd because the same dvb driver runs perfectly on
> >suse 7.1 with kernel 2.4.0.
> 
> i do have only version 2.4.8 to 2.4.10 on my machine to compare.
> 
> between 1.58 and 1.64 are a lot of differences.
> 
> i did not apply the i2c-patch to the kernel but
> use the drivers from the i2c paket directly.
> 
> >i wonder what could have changed so
> >dramatically between these two kernel versions, that has these bad
> >effects on the saa7146_core.o module...

Well, believe it or not, but suddenly everything works fine!
What I did was to do

  make xconfigure
  make
  make modules

in /usr/src/linux, but I did _not_ do any "make install" or so (and the
above commands were issued as a "normal" user).
After that I also recompiled the driver and now it works.

Sorry for the disturbances. Maybe nobody else has this kind of problems,
because you all make your own kernels... ;-)

Klaus
-- 
_______________________________________________________________

Klaus Schmidinger                       Phone: +49-8635-6989-10
CadSoft Computer GmbH                   Fax:   +49-8635-6989-40
Hofmark 2                               Email:   kls@cadsoft.de
D-84568 Pleiskirchen, Germany           URL:     www.cadsoft.de
_______________________________________________________________


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