diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-12-18 21:54:49 +0100 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-12-18 21:54:49 +0100 |
commit | d110ec3a1e1f522e2e9dfceb9c36d6590c26d2d4 (patch) | |
tree | 86b2f8f1d22b74b05239525c55bd42e3db6afc03 /Documentation/ics932s401 | |
parent | 343e9099c8152daff20e10d6269edec21da44fc0 (diff) | |
parent | 55dac3a5553b13891f0ae4bbd11920619b5436d4 (diff) |
Merge branch 'linus' into core/rcu
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 00000000000..07a739f406d --- /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! |