root@beaglebone:/sys/kernel/debug# cat gpio
GPIOs 0-31, gpio:
 gpio-6   (mmc_cd              ) in  lo
 gpio-7   (BONE_LCD_AVDD_EN    ) out hi

GPIOs 32-63, gpio:
 gpio-35  (w1                  ) in  hi
 gpio-48  (left                ) in  hi
 gpio-49  (right               ) in  hi
 gpio-51  (up                  ) in  hi
 gpio-53  (beaglebone::usr0    ) out lo
 gpio-54  (beaglebone::usr1    ) out hi
 gpio-55  (beaglebone::usr2    ) out lo
 gpio-56  (beaglebone::usr3    ) out lo

GPIOs 64-95, gpio:

GPIOs 96-127, gpio:
 gpio-112 (down                ) in  lo
 gpio-115 (enter               ) in  lo