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author | Paul Mackerras <paulus@samba.org> | 2008-11-19 16:10:32 +1100 |
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committer | Paul Mackerras <paulus@samba.org> | 2008-11-19 16:10:32 +1100 |
commit | cea555d384b85271035814c5adad23e6c7fc5d2a (patch) | |
tree | 1181b6333a69a135293ec75f8a48c849ee32c015 /Documentation/ics932s401 | |
parent | 78608dd32ce46789e970d6c3c423cd668c138d6c (diff) | |
parent | 7f0f598a0069d1ab072375965a4b69137233169c (diff) | |
download | linux-next-cea555d384b85271035814c5adad23e6c7fc5d2a.tar.gz |
Merge branch 'linux-2.6' into next
Diffstat (limited to 'Documentation/ics932s401')
-rw-r--r-- | Documentation/ics932s401 | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/Documentation/ics932s401 b/Documentation/ics932s401 new file mode 100644 index 000000000000..07a739f406d8 --- /dev/null +++ b/Documentation/ics932s401 @@ -0,0 +1,31 @@ +Kernel driver ics932s401 +====================== + +Supported chips: + * IDT ICS932S401 + Prefix: 'ics932s401' + Addresses scanned: I2C 0x69 + Datasheet: Publically available at the IDT website + +Author: Darrick J. Wong + +Description +----------- + +This driver implements support for the IDT ICS932S401 chip family. + +This chip has 4 clock outputs--a base clock for the CPU (which is likely +multiplied to get the real CPU clock), a system clock, a PCI clock, a USB +clock, and a reference clock. The driver reports selected and actual +frequency. If spread spectrum mode is enabled, the driver also reports by what +percent the clock signal is being spread, which should be between 0 and -0.5%. +All frequencies are reported in KHz. + +The ICS932S401 monitors all inputs continuously. The driver will not read +the registers more often than once every other second. + +Special Features +---------------- + +The clocks could be reprogrammed to increase system speed. I will not help you +do this, as you risk damaging your system! |