On Mon, 2009-11-23 at 00:29 +0200, Igor M. Liplianin wrote: > 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. Igor, Thank you. I did not have a board to trace. I will then stick with my original plan since the F300 doesn't do the IR. > 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 Interesting.... static void Delay1mS(void) { udelay(800); } :D Regards, Andy > BR > Igor -- 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
