| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |