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author | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-11-28 15:23:52 +1100 |
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committer | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-11-28 15:23:52 +1100 |
commit | b5a20aa2657063cbf3b47fc700603180de4bb554 (patch) | |
tree | 9419fb851cda53a7f1fd67a3697bdf8550df19e4 /Documentation/ics932s401 | |
parent | cc09c0dc57de7f7d2ed89d480b5653e5f6a32f2c (diff) | |
parent | ed313489badef16d700f5a3be50e8fd8f8294bc8 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
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! |