ICHLPCIB(4) NetBSD Kernel Interfaces Manual ICHLPCIB(4)
ichlpcib -- Intel ICH LPC Interface Bridge
ichlpcib* at pci? dev ? function ? hpet0 at ichlpcib? isa0 at ichlpcib?
The ichlpcib driver supports the Intel ICH LPC Interface Bridges on com- patible chipsets. Supported functions include: + Watchdog timer. The watchdog timer may be configured for a 2 seconds (on ICH6 or newer) and 4 seconds (on ICH5 or older) min period and for a 39 seconds (on ICH5 or older) or 613 seconds max period (on ICH6 or newer). + Power Management timer. A 24-bit timer available to be used by the timecounters framework. + SpeedStep. In some systems the SpeedStep function is also available, and can be used to switch between high and low frequency (to reduce power consumption) via the machdep.speedstep_state sysctl(8) node. A value of 0 will use the low frequency (low power) and a 1 will enable the high frequency (full power).
The ichlpcib driver first appeared in NetBSD 3.0.
The ichlpcib driver was written by Minoura Makoto and Matthew R. Green. NetBSD 5.0_RC4 March 28, 2008 NetBSD 5.0_RC4
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