1*4882a593Smuzhiyun======================== 2*4882a593SmuzhiyunKernel driver ics932s401 3*4882a593Smuzhiyun======================== 4*4882a593Smuzhiyun 5*4882a593SmuzhiyunSupported chips: 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun * IDT ICS932S401 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun Prefix: 'ics932s401' 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun Addresses scanned: I2C 0x69 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun Datasheet: Publicly available at the IDT website 14*4882a593Smuzhiyun 15*4882a593SmuzhiyunAuthor: Darrick J. Wong 16*4882a593Smuzhiyun 17*4882a593SmuzhiyunDescription 18*4882a593Smuzhiyun----------- 19*4882a593Smuzhiyun 20*4882a593SmuzhiyunThis driver implements support for the IDT ICS932S401 chip family. 21*4882a593Smuzhiyun 22*4882a593SmuzhiyunThis chip has 4 clock outputs--a base clock for the CPU (which is likely 23*4882a593Smuzhiyunmultiplied to get the real CPU clock), a system clock, a PCI clock, a USB 24*4882a593Smuzhiyunclock, and a reference clock. The driver reports selected and actual 25*4882a593Smuzhiyunfrequency. If spread spectrum mode is enabled, the driver also reports by what 26*4882a593Smuzhiyunpercent the clock signal is being spread, which should be between 0 and -0.5%. 27*4882a593SmuzhiyunAll frequencies are reported in KHz. 28*4882a593Smuzhiyun 29*4882a593SmuzhiyunThe ICS932S401 monitors all inputs continuously. The driver will not read 30*4882a593Smuzhiyunthe registers more often than once every other second. 31*4882a593Smuzhiyun 32*4882a593SmuzhiyunSpecial Features 33*4882a593Smuzhiyun---------------- 34*4882a593Smuzhiyun 35*4882a593SmuzhiyunThe clocks could be reprogrammed to increase system speed. I will not help you 36*4882a593Smuzhiyundo this, as you risk damaging your system! 37