r0 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000140)='/proc/bus/input/handlers\x00', 0x0, 0x0)
preadv(r0, &(0x7f0000000780)=[{&(0x7f00000006c0)=""/168, 0xa8}], 0x1, 0x80000, 0x0)