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authorTakashi Iwai <tiwai@suse.de>2008-12-01 18:02:17 +0100
committerTakashi Iwai <tiwai@suse.de>2008-12-01 18:02:17 +0100
commit3af4182cc5be7d5505f9801ee3297373f1872446 (patch)
tree214348d40ed547a72f9612a7e5c94a01afded812 /Documentation/ics932s401
parentf5d4c67e41a262f0cdfaec1bb0fa8e5952187ef9 (diff)
parentc07f62e5f18123103459ff74e86af1518a5b8af5 (diff)
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+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!