On Wed, Jan 19, 2011 at 10:39:46AM -0700, Mark Zimmerman wrote: > On Wed, Jan 19, 2011 at 09:22:28AM -0800, VDR User wrote: > > On Wed, Jan 19, 2011 at 8:13 AM, Devin Heitmueller > > <dheitmueller@xxxxxxxxxxxxxx> wrote: > > >> Can someone please look into this and possibly provide a fix for the > > >> bug? ??I'm surprised it hasn't happened yet after all this time but > > >> maybe it's been forgotten the bug existed. > > > > > > You shouldn't be too surprised. ??In many cases device support for more > > > obscure products comes not from the maintainer of the actual driver > > > but rather from some random user who hacked in an additional board > > > profile (in many cases, not doing it correctly but good enough so it > > > "works for them"). ??In cases like that, the changes get committed, the > > > original submitter disappears, and then when things break there is > > > nobody with the appropriate knowledge and the hardware to debug the > > > problem. > > > > Good point. My understanding is that this is a fairly common card so > > I wouldn't think that would be the case. At any rate, hopefully we'll > > be able to narrow down the cause of the problem and get it fixed. > > > > Were there changes to i2c between 2.6.35 and 2.6.36 that are missing > from the xc5000 driver? If so, is there another driver that has the > required updates so I can look at what changed? I would like to get > some traction on this but I really don't know where to start. > >From looking at the code and a dump of the firmware file, the first i2c write would have a length of 3; so this error: xc5000: I2C write failed (len=3) tells me that there were probably no successful i2c transactions on this device. The i2c write call looks the same as that in other drivers, so I wonder if there is an initialization step that is now necessary but which is missing. Still hoping for suggestions... -- Mark -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
