I am expermenting with one small program that read/write EDID data from and to the monitor. I am able to read the EDID data through I2C communication by using IOI2CSendRequest() function and filling the I2CRequest structure as below.
so from the above structure i can read the EDID data ...
After getting EDID data, i modified the manufacturer's name of monitor and try to write it to the monitor using the same IOI2CSendRequest() by filling the structure as follows
request.sendAddress = 0xA0;
request.minReplyDelay = 0;
request.sendTransactionType = simpleTransactionType ( also used combinedTransactionType)
request.sendBuffer = &buf[0];
request.sendBytes = sizeof(buf);
request.replyTransactionType = NoTransactionType
request.replyBytes = 0;
but i am unable to write to the monitor....it is showing the previous values only.... and one more thing is that i didnot use the I2CBusTiming structure
please suggest me some solution to write the EDID data to the monitor in Mac OS X.
Thanks in advance
Sudheer
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