Commit | Line | Data |
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9b5db89e | 1 | ======================== |
a412ae3f | 2 | Kernel driver ics932s401 |
9b5db89e | 3 | ======================== |
a412ae3f DW |
4 | |
5 | Supported chips: | |
9b5db89e | 6 | |
a412ae3f | 7 | * IDT ICS932S401 |
9b5db89e | 8 | |
a412ae3f | 9 | Prefix: 'ics932s401' |
9b5db89e | 10 | |
a412ae3f | 11 | Addresses scanned: I2C 0x69 |
9b5db89e | 12 | |
25985edc | 13 | Datasheet: Publicly available at the IDT website |
a412ae3f DW |
14 | |
15 | Author: Darrick J. Wong | |
16 | ||
17 | Description | |
18 | ----------- | |
19 | ||
20 | This driver implements support for the IDT ICS932S401 chip family. | |
21 | ||
22 | This chip has 4 clock outputs--a base clock for the CPU (which is likely | |
23 | multiplied to get the real CPU clock), a system clock, a PCI clock, a USB | |
24 | clock, and a reference clock. The driver reports selected and actual | |
25 | frequency. If spread spectrum mode is enabled, the driver also reports by what | |
26 | percent the clock signal is being spread, which should be between 0 and -0.5%. | |
27 | All frequencies are reported in KHz. | |
28 | ||
29 | The ICS932S401 monitors all inputs continuously. The driver will not read | |
30 | the registers more often than once every other second. | |
31 | ||
32 | Special Features | |
33 | ---------------- | |
34 | ||
35 | The clocks could be reprogrammed to increase system speed. I will not help you | |
36 | do this, as you risk damaging your system! |