Examples of org.jnode.driver.bus.smbus.SMBusControler.readByte()

org.jnode.driver.bus.smbus.SMBusControler.readByte()

Reading data is slightly more complicated than writing data. First the host must write a command to the slave device. Then it must follow that command with a repeated START condition to denote a read from that device\u2019s address. The slave then returns one or two bytes of data.

Note that there is no STOP condition before the repeated START condition, and that a NACK signifies the end of the read transfer. @param deviceaddress a 7 bit quantity @param address a 8 bit quantity used to identify what is requested @return byte read @throws java.security.InvalidParameterException @throws java.io.IOException if transfer encounters an error @throws java.lang.UnsupportedOperationException

        }


        for (byte i = 0; i < 8; i++) {
            try {
                // TODO - can someone explain why we are shifting and ORing?  It looks like a bug to me.
                byte res = smbusctrl.readByte((byte) (0xa0 | (i << 1)), (byte) 2);
                out.println("DIMM " + i + " : type = " + Integer.toHexString(res));
            } catch (IOException ex) {
                out.println("DIMM " + i + " : not present");
            }
        }

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