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author | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-11-27 23:23:52 -0500 |
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committer | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-11-27 23:23:52 -0500 |
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 | |||
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1 | Kernel driver ics932s401 | ||
2 | ====================== | ||
3 | |||
4 | Supported chips: | ||
5 | * IDT ICS932S401 | ||
6 | Prefix: 'ics932s401' | ||
7 | Addresses scanned: I2C 0x69 | ||
8 | Datasheet: Publically available at the IDT website | ||
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! | ||