summaryrefslogtreecommitdiffstats
path: root/Documentation/i2c/busses/i2c-savage4
blob: 6ecceab618d39730cae2e5653a77f2d6fa5ea282 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Kernel driver i2c-savage4

Supported adapters:
  * Savage4
  * Savage2000

Authors: 
	Alexander Wold <awold@bigfoot.com>,
	Mark D. Studebaker <mdsxyz123@yahoo.com> 

Description
-----------

The Savage4 chips contain two I2C interfaces (aka a I2C 'master'
or 'host'). 

The first interface is used for DDC (Data Display Channel) which is a
serial channel through the VGA monitor connector to a DDC-compliant
monitor. This interface is defined by the Video Electronics Standards
Association (VESA). The standards are available for purchase at
http://www.vesa.org . The DDC bus is not yet supported because its register
is not directly memory-mapped.

The second interface is a general-purpose I2C bus. This is the only
interface supported by the driver at the moment.

OpenPOWER on IntegriCloud