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How to use I2C

95 bytes added, 11:49, 22 August 2012
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= Overview =
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] and [[How to get the Poky Linux distribution|Poky Linux distribution]] with [[Linux Kernel 2.6.35.y|Kernel 2.6.35.y]] and <br> *[[How to get the Poky Linux distributionIGEP firmware Yocto|Poky Linux distributionIGEP firmware Yocto]]with [[Linux_Kernel_2.6.37.<br> y|Kernel 2.6.37.y]]
NOTE: This program is a beta version, it decodes EDID following E-EDID Standard Release A-1 from VESA using i2c-dev driver. There are some functionalities that are not implemented (see code comments) and other new ones that appear in other revisions. Besides, this program only parses the first EDID 128 bytes block. But this code is enough to learn to use I2C.<br>
More information about [http://en.wikipedia.org/wiki/Extended_display_identification_data EDID].<br>
= Feedback and Contributing =
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