# ls -l /sys/class/i2c-adapter/i2c-2/
-rw-r--r-- root     root         4096 2012-02-02 21:17 uevent
-r--r--r-- root     root         4096 2012-02-02 21:17 name
--w------- root     root         4096 2012-02-02 21:17 new_device
--w------- root     root         4096 2012-02-02 21:17 delete_device
lrwxrwxrwx root     root              2012-02-02 21:17 subsystem -> ../../../../bus/i2c
drwxr-xr-x root     root              2012-02-02 21:17 power
lrwxrwxrwx root     root              2012-02-02 21:17 device -> ../../rk29_i2c.2
drwxr-xr-x root     root              2012-02-02 21:17 2-005c
# cat /sys/class/i2c-adapter/i2c-2/2-005c/*
/sys/class/i2c-adapter/i2c-2/2-005c/driver: invalid length
i2c:sis809_touch
sis809_touch
/sys/class/i2c-adapter/i2c-2/2-005c/power: invalid length
/sys/class/i2c-adapter/i2c-2/2-005c/subsystem: invalid length
DRIVER=sis809_touch
MODALIAS=i2c:sis809_touch