On 22 ноября 2009 22:11:47 Andy Walls wrote: > On Sun, 2009-11-22 at 19:08 +0100, Matthias Fechner wrote: > > Hi Andy, > > > > Andy Walls wrote: > > > Thank you. I will probably need you for testing when ready. > > > > > > > > > I was planning to do step 1 above for HVR-1800 IR anyway. > > > > > > I will estimate that I may have something ready by about Christmas (25 > > > December 2009), unless work becomes very busy. > > > > thanks a lot for your answer. > > I uploaded two pictures I did from the card, you can find it here: > > http://fechner.net/tevii-s470/ > > > > It is a CX23885. > > The driver I use is the ds3000. > > lspci says: > > [snip] > > Matthias, > > Thanks for the pictures. OK so of the two other interesting chips on > the S470: > > U4 is an I2C connected EEPROM - we don't care about that for IR. > > U10 appears to perhaps be a Silicon Labs C8051F300 microcontroller or > similar: > > http://www.silabs.com/products/mcu/smallmcu/Pages/C8051F30x.aspx > > Since the 'F300 has an A/D convertor and has an SMBus interface > (compatable with the I2C bus), I suspect this chip could be the IR > controller on the TeVii S470. > > Could you as root: > > # modprobe cx23885 > # modprobe i2c-dev > # i2c-detect -l > (to list all the i2c buses, including cx23885 mastered i2c buses) > # i2c-detect -y N > (to show the addresses in use on bus # N: only query the cx23885 buses) > > > i2c-detect was in the lm-sensors package last I checked. (Jean can > correct me if I'm wrong.) > > With that information, I should be able to figure out what I2C address > that microcontroller is listening to. > > Then we can work out how to read and decode it's data and add it to > ir-kbd-i2c at least. Depending on how your kernel and LIRC versions > LIRC might still work with I2C IR chips too. > > > All presupposing of course that that 'F300 chip is for IR... Receiver connected to cx23885 IR_RX(pin 106). It is not difficult to track. F300 is for LNB power control. It connected to cx23885 GPIO pins: GPIO0 - data - P0.3 F300 GPIO1 - reset - P0.2 F300 GPIO2 - clk - P0.1 F300 GPIO3 - busy - P0.0 F300 Interface seems not I2C/SMBUS. Source code from TeVii: http://mercurial.intuxication.org/hg/s2- liplianin/file/d0dfe416e0f6/linux/drivers/media/video/cx23885/tevii_pwr.c BR Igor > > Regards, > Andy > > > I can test any patch when you have one ready, currently I'm using lirc > > together with a TechnoTrend RemoteControl. > > Thanks a lot and have a nice week > > > > Best regards, > > Matthias -- Igor M. Liplianin Microsoft Windows Free Zone - Linux used for all Computing Tasks -- 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
