Larry Finger <larry.finger@xxxxxxxxx> wrote: > > On 4/10/24 9:13 PM, Ping-Ke Shih wrote: > > > > Larry Finger <Larry.Finger@xxxxxxxxx> wrote: > > > >> + mdelay(500); > > > > Will it better to use sleep function? > > My thoughts were that a sleep function would tie up a CPU, whereas the delay > would not. Initially, we tested an msleep(150) statement, but that only gave a > 60% success rate, whereas mdelay(500) worked 20 straight tries. > Sorry, I didn't consider the experimental results of msleep(150) and mdelay(500). My point was busy waiting of mdelay(). I just want to say if msleep(500) is better than mdelay(500).