[linux-dvb] Re: Nebula card supported by bttv in 2.6-test3, but no bt878 in kerne l

[Ralf Reschke]

Title: RE: [linux-dvb] Nebula card supported by bttv in 2.6-test3, but no bt878 in kerne l

Hello, I own a Pinnacle PCTV Sat and get compile errors while I compile a new kernel (2.6.0-test3). Those errors were created by the bttv- driver:   CC [M]  drivers/media/video/bttv-driver.o drivers/media/video/bttv-driver.c: In function `bttv_prepare_buffer': drivers/media/video/bttv-driver.c:1283: too few arguments to function `videobuf_iolock' drivers/media/video/bttv-driver.c: In function `bttv_do_ioctl': drivers/media/video/bttv-driver.c:2247: too few arguments to function `videobuf_mmap_setup' make[3]: *** [drivers/media/video/bttv-driver.o] Fehler 1 make[2]: *** [drivers/media/video] Fehler 2 make[1]: *** [drivers/media] Fehler 2 make: *** [drivers] Fehler 2   Could this also be a problem with the i2c- device ??? I guess that the Nebula and the PCTV Sat have the same problems because they both use the bttv- driver.   If someone finds a solution for the Nebula will this solution work for the PCTV Sat as well ?   -Ralf ----- Original Message ----- From: Brian Korsedal To: Michael Hunold Cc: [EMAIL PROTECTED] ; [EMAIL PROTECTED] Sent: Wednesday, August 13, 2003 5:01 PM Subject: [linux-dvb] Re: Nebula card supported by bttv in 2.6-test3, but no bt878 in kerne l Well, I've wanted to get this card working for a while.  So, I'll start reading up on sysfs.txt and see what I can do.  Are there any examples of how to do it with other DVB cards?  I suppose other cards need the i2c interface also. -Brian -----Original Message----- From:   Michael Hunold [mailto:[EMAIL PROTECTED]] Sent:   Wed 8/13/2003 1:13 AM To:     Brian Korsedal Cc:     [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject:        Re: [linux-dvb] Nebula card supported by bttv in 2.6-test3, but no bt878 in kerne       l Hello Brian, > I want to get my Nebula card working under Linux.  I've been active on > this list and I've tried several of the suggestions.  For some reason, > none of them have worked.  I've noticed that in the recent release of > the kernel, the Nebula Digitv card is included in bttv.  The name entry was included by Gerd Knorr, that's right, so that the bttv driver recognises the device -- not more, not less. There is no additional functionality within bttv. > A few days ago > (when I first spotted the test3 release) I tried it with the cvs release > of dvb-kernel.  I was not able to make a working kernel. dvb-kernel and test3 are very close in sync. It's possible that the "makelinks" approach of patching the kernel does not work at the moment. The Nebula driver, however, won't work unless you apply the i2c-bttv-patch. > Has anyone > else been able to use this card with this kernel?  Now that there is > bttv support, will the bt878 driver be included in future kernel > releases?  Will there be patches?  The problem is, that the i2c-bttv patch is refused by Gerd Knorr. But IMHO Gerd is correct, the patch is hackish: it exports the i2c interface of the bttv driver, so that the DVB i2c stuff can use it. This is likely to introduce bugs and races.  > Is there anything I can do to speed  > up the process/ what needs to be done? bttv exports the i2c adapter via the sysfs -- somewhat similar to procfs, but better, have a look at Documentation/filesystems/sysfs.txt. So it should be possible to replace the calls to the hackish "give-me-the-i2c-adapter" function and get access to the i2c adapter via the sysfs interface instead. So someone with a Nebula card, a recent test3 kernel and knowledge about sysfs and kernel development should be able to get it work. I wrote a private mail to the driver author, but I did not receive an answer yet. Perhaps he's busy, I've included him as CC, so perhaps he can tell us if he can look after this. > -Brian CU Michael.