I tried hpet_readl() from my driver code, while hit compiling error. is it a correct API for kernel driver to invoke? any more hint? 2010/7/13 Samuel Xu <samuel.xu.tech@xxxxxxxxx>: > HI: > I am a freshman for HPET timer. Previously, I use TSC counter, to use > rdtsc to get the time stamp. elapsed cycle can be counter from 2 time > stamps. > As a advanced replacement of TSC, I suppose HPET timer can be > conveniently to read time stamp from both kernel mode user and user > mode apps. > While I failed to find a way to get time stamp value of HPET in Linux > kenerl (I am doing a driver and want to know elapsed cycle from driver > code). > > Anyone can help me? > > Thanks! > > Samuel > -- To unsubscribe from this list: send the line "unsubscribe platform-driver-x86" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
