On Fri, Feb 1, 2013 at 4:03 PM, Chris Clayton <chris2...@googlemail.com> wrote: > Yes, I noticed that but even with the tuning timeout set at medium or > longest, I doesn't find any channels. However, I've been following the debug > messages through the code and ended up at > drivers/media/pci/cx23885/cx23885-i2c.c. > > I've found that by amending I2C_WAIT_DELAY from 32 to 64, I get improved > results from scanning. With that delay doubled, scandvb now finds 49 > channels over 3 frequencies. That's with all debugging turned off, so no > extra delays provided by the production of debug messages. > > I'll play around more tomorrow and update then.
It could be that the cx23885 driver doesn't properly implement I2C clock stretching, which is something you don't encounter on most tuners but is an issue when communicating with the Xceive parts. Devin -- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
