1*9b5db89eSMauro Carvalho Chehab======================== 2*9b5db89eSMauro Carvalho ChehabKernel driver ics932s401 3*9b5db89eSMauro Carvalho Chehab======================== 4*9b5db89eSMauro Carvalho Chehab 5*9b5db89eSMauro Carvalho ChehabSupported chips: 6*9b5db89eSMauro Carvalho Chehab 7*9b5db89eSMauro Carvalho Chehab * IDT ICS932S401 8*9b5db89eSMauro Carvalho Chehab 9*9b5db89eSMauro Carvalho Chehab Prefix: 'ics932s401' 10*9b5db89eSMauro Carvalho Chehab 11*9b5db89eSMauro Carvalho Chehab Addresses scanned: I2C 0x69 12*9b5db89eSMauro Carvalho Chehab 13*9b5db89eSMauro Carvalho Chehab Datasheet: Publicly available at the IDT website 14*9b5db89eSMauro Carvalho Chehab 15*9b5db89eSMauro Carvalho ChehabAuthor: Darrick J. Wong 16*9b5db89eSMauro Carvalho Chehab 17*9b5db89eSMauro Carvalho ChehabDescription 18*9b5db89eSMauro Carvalho Chehab----------- 19*9b5db89eSMauro Carvalho Chehab 20*9b5db89eSMauro Carvalho ChehabThis driver implements support for the IDT ICS932S401 chip family. 21*9b5db89eSMauro Carvalho Chehab 22*9b5db89eSMauro Carvalho ChehabThis chip has 4 clock outputs--a base clock for the CPU (which is likely 23*9b5db89eSMauro Carvalho Chehabmultiplied to get the real CPU clock), a system clock, a PCI clock, a USB 24*9b5db89eSMauro Carvalho Chehabclock, and a reference clock. The driver reports selected and actual 25*9b5db89eSMauro Carvalho Chehabfrequency. If spread spectrum mode is enabled, the driver also reports by what 26*9b5db89eSMauro Carvalho Chehabpercent the clock signal is being spread, which should be between 0 and -0.5%. 27*9b5db89eSMauro Carvalho ChehabAll frequencies are reported in KHz. 28*9b5db89eSMauro Carvalho Chehab 29*9b5db89eSMauro Carvalho ChehabThe ICS932S401 monitors all inputs continuously. The driver will not read 30*9b5db89eSMauro Carvalho Chehabthe registers more often than once every other second. 31*9b5db89eSMauro Carvalho Chehab 32*9b5db89eSMauro Carvalho ChehabSpecial Features 33*9b5db89eSMauro Carvalho Chehab---------------- 34*9b5db89eSMauro Carvalho Chehab 35*9b5db89eSMauro Carvalho ChehabThe clocks could be reprogrammed to increase system speed. I will not help you 36*9b5db89eSMauro Carvalho Chehabdo this, as you risk damaging your system! 37