查看触摸屏报点率

getevent -r |grep “eventx”

相应代码在 system/core/toolbox/getevent.c
usage:

static void usage(int argc, char *argv[]){    fprintf(stderr, "Usage: %s [-t] [-n] [-s switchmask] [-S] [-v [mask]] [-d] [-p] [-i] [-l] [-q] [-c count] [-r] [device]\n", argv[0]);    fprintf(stderr, "    -t: show time stamps\n");    fprintf(stderr, "    -n: don't print newlines\n");    fprintf(stderr, "    -s: print switch states for given bits\n");    fprintf(stderr, "    -S: print all switch states\n");    fprintf(stderr, "    -v: verbosity mask (errs=1, dev=2, name=4, info=8, vers=16, pos. events=32, props=64)\n");    fprintf(stderr, "    -d: show HID descriptor, if available\n");    fprintf(stderr, "    -p: show possible events (errs, dev, name, pos. events)\n");    fprintf(stderr, "    -i: show all device info and possible events\n");    fprintf(stderr, "    -l: label event types and names in plain text\n");    fprintf(stderr, "    -q: quiet (clear verbosity mask)\n");    fprintf(stderr, "    -c: print given number of events then exit\n");    fprintf(stderr, "    -r: print rate events are received\n");}