0 Replies Latest reply on Jul 20, 2009 10:10 PM by luyang81

    ADL_SDK ADL_Display_WriteAndReadI2C can not work

    luyang81
      ADL_SDK ADL_Display_WriteAndReadI2C can not work

      I want to use the function ADL_Display_WriteAndReadI2C in ADL_SDK to access the EDID of monitor, but the function always returns -1 which is not successful. I put part of my code here:

        ADL_i2c_rw = (ADL_DISPLAY_I2C)GetProcAddress(hDLL,"ADL_Display_WriteAndReadI2C");
        pi2c = malloc(sizeof(ADLI2C));
        memset(pi2c, 0x0, sizeof(ADLI2C));
        pi2c->iSize = sizeof(ADLI2C);
        pi2c->iLine = 1;
        pi2c->iAddress = 0x50;
        pi2c->iOffset = 0;
        pi2c->iAction = ADL_DL_I2C_ACTIONREAD;
        pi2c->iSpeed = 100;
        pi2c->iDataSize = 1; // 1-Byte
        pi2c->pcData = malloc(pi2c->iDataSize);
        if (ADL_i2c_rw != NULL)
        {
         iRet = ADL_i2c_rw(iAdapterIndex, pi2c);
         printf(_T("\n"));
         for (i = 0; i < pi2c->iDataSize; i++)
         {
          printf(_T("ADL_Display_WriteAndReadI2C[%d]: 0x%x02\n"), i, pi2c->pcData);
         }
        }

       

      Can anyone give me some help? thanks a lot!

      or can anyone give me some suggestion to contact AMD/ATI (I already have sent mail to gputools.support@amd.com but no reply)