/mnt/home/program/build_cross # echo 0 > /sys/class/gpio/gpio167/value
/mnt/home/program/build_cross # echo 1 > /sys/class/gpio/gpio167/value
/mnt/home/program/build_cross # cat /sys/kernel/debug/gpio
gpiochip0: GPIOs 0-31, parent: platform/4ae10000.gpio, gpio-0-31:
 gpio-5   (                    |sysfs               ) in  lo
 gpio-14  (                    |sysfs               ) in  lo
 gpio-22  (                    |sysfs               ) in  lo
 gpio-23  (                    |sysfs               ) in  lo
 gpio-24  (                    |sysfs               ) in  lo
 gpio-25  (                    |sysfs               ) in  lo

gpiochip1: GPIOs 32-63, parent: platform/48055000.gpio, gpio-32-63:
 gpio-54  (                    |sysfs               ) in  lo

gpiochip2: GPIOs 64-95, parent: platform/48057000.gpio, gpio-64-95:
 gpio-92  (                    |sysfs               ) out lo
 gpio-93  (                    |sysfs               ) out hi

gpiochip3: GPIOs 96-127, parent: platform/48059000.gpio, gpio-96-127:
 gpio-102 (                    |sysfs               ) out hi
 gpio-105 (                    |sysfs               ) out hi
 gpio-106 (                    |sysfs               ) out hi
 gpio-107 (                    |sysfs               ) out hi
 gpio-108 (                    |sysfs               ) out hi

gpiochip4: GPIOs 128-159, parent: platform/4805b000.gpio, gpio-128-159:
 gpio-146 (                    |sysfs               ) in  hi IRQ
 gpio-147 (                    |sysfs               ) out hi

gpiochip5: GPIOs 160-191, parent: platform/4805d000.gpio, gpio-160-191:
 gpio-167 (                    |sysfs               ) out hi
 gpio-170 (                    |sysfs               ) in  lo
 gpio-180 (                    |sysfs               ) out hi
 gpio-187 (                    |sysfs               ) in  lo
 gpio-188 (                    |sub-lcd-backlight   ) out lo
 gpio-191 (                    |vtt_fixed           ) out hi

gpiochip6: GPIOs 192-223, parent: platform/48051000.gpio, gpio-192-223:
 gpio-194 (                    |sysfs               ) in  lo
 gpio-195 (                    |sysfs               ) out hi
 gpio-198 (                    |sysfs               ) out hi
 gpio-203 (                    |sysfs               ) in  hi
 gpio-206 (                    |sysfs               ) out hi
 gpio-207 (                    |sysfs               ) out hi
 gpio-209 (                    |sysfs               ) in  lo
 gpio-216 (                    |sysfs               ) in  lo
 gpio-219 (                    |sysfs               ) in  lo

gpiochip7: GPIOs 224-255, parent: platform/48053000.gpio, gpio-224-255:

gpiochip9: GPIOs 502-503, parent: platform/50000000.gpmc, omap-gpmc:

gpiochip8: GPIOs 504-511, parent: platform/48070000.i2c:tps659038@58:tps659038_gpio, 48070000.i2c:tps659038@58:tps659038_gpio, can sleep:
/mnt/home/program/build_cross #