| Darrick J. Wong | a412ae3 | 2008-11-12 13:27:04 -0800 | [diff] [blame] | 1 | Kernel driver ics932s401 |
| 2 | ====================== |
| 3 | |
| 4 | Supported chips: |
| 5 | * IDT ICS932S401 |
| 6 | Prefix: 'ics932s401' |
| 7 | Addresses scanned: I2C 0x69 |
| Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame^] | 8 | Datasheet: Publicly available at the IDT website |
| Darrick J. Wong | a412ae3 | 2008-11-12 13:27:04 -0800 | [diff] [blame] | 9 | |
| 10 | Author: Darrick J. Wong |
| 11 | |
| 12 | Description |
| 13 | ----------- |
| 14 | |
| 15 | This driver implements support for the IDT ICS932S401 chip family. |
| 16 | |
| 17 | This chip has 4 clock outputs--a base clock for the CPU (which is likely |
| 18 | multiplied to get the real CPU clock), a system clock, a PCI clock, a USB |
| 19 | clock, and a reference clock. The driver reports selected and actual |
| 20 | frequency. If spread spectrum mode is enabled, the driver also reports by what |
| 21 | percent the clock signal is being spread, which should be between 0 and -0.5%. |
| 22 | All frequencies are reported in KHz. |
| 23 | |
| 24 | The ICS932S401 monitors all inputs continuously. The driver will not read |
| 25 | the registers more often than once every other second. |
| 26 | |
| 27 | Special Features |
| 28 | ---------------- |
| 29 | |
| 30 | The clocks could be reprogrammed to increase system speed. I will not help you |
| 31 | do this, as you risk damaging your system! |