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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 | ||