ics932s401.rst 1.0 KB

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