[root@localhost sys]# find -name state
./devices/platform/i2c_omap.1/i2c-1/1-004b/twl_reg.17/regulator/regulator.1/state
./devices/platform/i2c_omap.1/i2c-1/1-004b/twl_reg.18/regulator/regulator.2/state
./devices/platform/i2c_omap.1/i2c-1/1-004b/twl_reg.19/regulator/regulator.3/state
./devices/platform/i2c_omap.1/i2c-1/1-004b/twl_reg.4/regulator/regulator.4/state
./devices/platform/i2c_omap.1/i2c-1/1-004b/twl_reg.2/regulator/regulator.5/state
./devices/platform/i2c_omap.1/i2c-1/1-004b/twl_reg.6/regulator/regulator.6/state
./devices/platform/i2c_omap.1/i2c-1/1-004b/twl_reg.3/regulator/regulator.7/state
./devices/platform/i2c_omap.1/i2c-1/1-004b/twl_reg.11/regulator/regulator.8/state
./devices/platform/i2c_omap.1/i2c-1/1-004b/twl_reg.14/regulator/regulator.9/state
./devices/platform/i2c_omap.1/i2c-1/1-004b/twl_reg.15/regulator/regulator.10/state
./devices/platform/i2c_omap.1/i2c-1/1-004b/twl_reg.16/regulator/regulator.11/state
./devices/platform/i2c_omap.1/i2c-1/1-004b/twl_reg.5/regulator/regulator.12/state
./devices/platform/i2c_omap.1/i2c-1/1-004b/twl_reg.7/regulator/regulator.13/state
./devices/platform/i2c_omap.1/i2c-1/1-004b/twl_reg.8/regulator/regulator.14/state
./devices/platform/i2c_omap.1/i2c-1/1-004b/twl_reg.9/regulator/regulator.15/state
./devices/platform/i2c_omap.1/i2c-1/1-004b/twl_reg.12/regulator/regulator.16/state
./devices/platform/i2c_omap.1/i2c-1/1-004b/twl_reg.13/regulator/regulator.17/state
./devices/platform/omap2_mcspi.4/spi4.0/ieee80211/phy0/rfkill1/state
./devices/platform/omapfb/graphics/fb0/state
./devices/platform/omapfb/graphics/fb1/state
./devices/platform/omapfb/graphics/fb2/state
./devices/virtual/bluetooth/hci0/rfkill0/state
./kernel/debug/mmc1/mmc1:0001/state
./power/state