Hi, On Fri, May 30, 2008 at 04:36:03PM +0530, Tekkalkot, Seetaram (IE10) wrote:
> 1. As per the datasheet the i2c read address is 0x91 and write > address is 0x90, should I set any of these slave addresses based on > whether I am reading or writing? The datasheet seems obscure. An I2C-address is 7-bit and then there is a bit stating if the access shall be r/w. Of course, together they form a byte, but the address is 7 bit _only_ (there is a 10 bit extension, but this exception does not apply here). So, the _address_ is 0x48. > 2. I am using 7 bits from 0x91 which 0x48, is this correct? Yes. > 3. Why i2cdetect doesn't detect this device and also i2cget can't > read from register 0x00? Is there anything detected on that bus? Is there something else connected to that bus? All the best, Wolfram -- Dipl.-Ing. Wolfram Sang | http://www.pengutronix.de Pengutronix - Linux Solutions for Science and Industry
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