1 ======================== 1 ========================
2 Kernel driver ics932s401 2 Kernel driver ics932s401
3 ======================== 3 ========================
4 4
5 Supported chips: 5 Supported chips:
6 6
7 * IDT ICS932S401 7 * IDT ICS932S401
8 8
9 Prefix: 'ics932s401' 9 Prefix: 'ics932s401'
10 10
11 Addresses scanned: I2C 0x69 11 Addresses scanned: I2C 0x69
12 12
13 Datasheet: Publicly available at the IDT w 13 Datasheet: Publicly available at the IDT website
14 14
15 Author: Darrick J. Wong 15 Author: Darrick J. Wong
16 16
17 Description 17 Description
18 ----------- 18 -----------
19 19
20 This driver implements support for the IDT ICS 20 This driver implements support for the IDT ICS932S401 chip family.
21 21
22 This chip has 4 clock outputs--a base clock fo 22 This chip has 4 clock outputs--a base clock for the CPU (which is likely
23 multiplied to get the real CPU clock), a syste 23 multiplied to get the real CPU clock), a system clock, a PCI clock, a USB
24 clock, and a reference clock. The driver repo 24 clock, and a reference clock. The driver reports selected and actual
25 frequency. If spread spectrum mode is enabled 25 frequency. If spread spectrum mode is enabled, the driver also reports by what
26 percent the clock signal is being spread, whic 26 percent the clock signal is being spread, which should be between 0 and -0.5%.
27 All frequencies are reported in KHz. 27 All frequencies are reported in KHz.
28 28
29 The ICS932S401 monitors all inputs continuousl 29 The ICS932S401 monitors all inputs continuously. The driver will not read
30 the registers more often than once every other 30 the registers more often than once every other second.
31 31
32 Special Features 32 Special Features
33 ---------------- 33 ----------------
34 34
35 The clocks could be reprogrammed to increase s 35 The clocks could be reprogrammed to increase system speed. I will not help you
36 do this, as you risk damaging your system! 36 do this, as you risk damaging your system!
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