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author | David Vrabel <david.vrabel@csr.com> | 2008-11-19 14:48:07 +0000 |
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committer | David Vrabel <david.vrabel@csr.com> | 2008-11-19 14:48:07 +0000 |
commit | dba0a918722ee0f0ba3442575e4448c3ab622be4 (patch) | |
tree | fdb466cf09e7916135098d651b18924b2fe9ba5f /Documentation/ics932s401 | |
parent | 0996e6382482ce9014787693d3884e9468153a5c (diff) | |
parent | 7f0f598a0069d1ab072375965a4b69137233169c (diff) | |
download | op-kernel-dev-dba0a918722ee0f0ba3442575e4448c3ab622be4.zip op-kernel-dev-dba0a918722ee0f0ba3442575e4448c3ab622be4.tar.gz |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream
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 0000000..07a739f --- /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! |