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How to use I2C

31 bytes added, 18:25, 16 January 2012
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This How-To is meant to be a starting point for people to learn use I2C for IGEP v2 devices as quickly and easily as possible. In this how-to, we use a program that reads and decodes EDID information from display. This program was tested in [http://releases.linaro.org/platform/linaro-m/headless/final/linaro-m-headless-tar-20101108-2.tar.gz Linaro Headless] with [[Linux Kernel 2.6.35.y|Kernel 2.6.35.y]] and [[How to get the Poky Linux distribution|Poky Linux distribution]].<br>
NOTE: This program is a beta version, it decodes EDID following E-EDID follow Standard Release A-1 from VESA using i2c-dev driver. There are some functionalitise functionalities that are not implemented (see code comments) and other new ones that appear in other revisions. Besides it , this program only parse parses the first EDID 128 bytes block. But this code is only a sample to learnt use I2C.<br>
More information about [http://en.wikipedia.org/wiki/Extended_display_identification_data EDID].<br>
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