MTK 查看GPIO状态

root@rtech72_we_72_kk:/sys/devices/virtual/misc/mtgpio # cat pin
PIN: [MODE] [PULL_SEL] [DIN] [DOUT] [PULL EN] [DIR] [INV] [IES]
  0:1000010-1
  1:1000000-1
  2:1000010-1
  3:1000000-1
  4:1000000-1
  5:1000000-1
  6:1000000-1

  7:1000000-1

mt_gpio_show_pin

 "PIN: [MODE] [DIR] [DOUT] [DIN] [PULL_EN] [PULL_SEL] [IES] [SMT] [DRIVE] ( [R1] [R0] )\n");