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| 1 | Kernel driver i2c-savage4 | ||
| 2 | |||
| 3 | Supported adapters: | ||
| 4 | * Savage4 | ||
| 5 | * Savage2000 | ||
| 6 | |||
| 7 | Authors: | ||
| 8 | Alexander Wold <awold@bigfoot.com>, | ||
| 9 | Mark D. Studebaker <mdsxyz123@yahoo.com> | ||
| 10 | |||
| 11 | Description | ||
| 12 | ----------- | ||
| 13 | |||
| 14 | The Savage4 chips contain two I2C interfaces (aka a I2C 'master' | ||
| 15 | or 'host'). | ||
| 16 | |||
| 17 | The first interface is used for DDC (Data Display Channel) which is a | ||
| 18 | serial channel through the VGA monitor connector to a DDC-compliant | ||
| 19 | monitor. This interface is defined by the Video Electronics Standards | ||
| 20 | Association (VESA). The standards are available for purchase at | ||
| 21 | http://www.vesa.org . The DDC bus is not yet supported because its register | ||
| 22 | is not directly memory-mapped. | ||
| 23 | |||
| 24 | The second interface is a general-purpose I2C bus. This is the only | ||
| 25 | interface supported by the driver at the moment. | ||
| 26 | |||
