Commit | Line | Data |
---|---|---|
13f35ac1 NH |
1 | Kernel driver i2c-ismt |
2 | ||
3 | Supported adapters: | |
4 | * Intel S12xx series SOCs | |
5 | ||
6 | Authors: | |
7 | Bill Brown <bill.e.brown@intel.com> | |
8 | ||
9 | ||
10 | Module Parameters | |
11 | ----------------- | |
12 | ||
13 | * bus_speed (unsigned int) | |
14 | Allows changing of the bus speed. Normally, the bus speed is set by the BIOS | |
15 | and never needs to be changed. However, some SMBus analyzers are too slow for | |
16 | monitoring the bus during debug, thus the need for this module parameter. | |
17 | Specify the bus speed in kHz. | |
18 | Available bus frequency settings: | |
19 | 0 no change | |
20 | 80 kHz | |
21 | 100 kHz | |
22 | 400 kHz | |
23 | 1000 kHz | |
24 | ||
25 | ||
26 | Description | |
27 | ----------- | |
28 | ||
29 | The S12xx series of SOCs have a pair of integrated SMBus 2.0 controllers | |
30 | targeted primarily at the microserver and storage markets. | |
31 | ||
32 | The S12xx series contain a pair of PCI functions. An output of lspci will show | |
33 | something similar to the following: | |
34 | ||
35 | 00:13.0 System peripheral: Intel Corporation Centerton SMBus 2.0 Controller 0 | |
36 | 00:13.1 System peripheral: Intel Corporation Centerton SMBus 2.0 Controller 1 |