# ls -l /sys/class/i2c-adapter/i2c-0/
-rw-r--r-- root     root         4096 2012-02-02 21:04 uevent
-r--r--r-- root     root         4096 2012-02-02 21:04 name
--w------- root     root         4096 2012-02-02 21:04 new_device
--w------- root     root         4096 2012-02-02 21:04 delete_device
lrwxrwxrwx root     root              2012-02-02 21:04 subsystem -> ../../../../bus/i2c
drwxr-xr-x root     root              2012-02-02 21:04 power
lrwxrwxrwx root     root              2012-02-02 21:04 device -> ../../rk29_i2c.0
drwxr-xr-x root     root              2012-02-02 21:04 0-001a
drwxr-xr-x root     root              2012-02-02 21:04 0-0051
drwxr-xr-x root     root              2012-02-02 21:04 0-001c
# ls -l /sys/class/i2c-adapter/i2c-0/0-001a
-rw-r--r-- root     root         4096 2012-02-02 21:07 uevent
-r--r--r-- root     root         4096 2012-02-02 21:07 name
-r--r--r-- root     root         4096 2012-02-02 21:07 modalias
lrwxrwxrwx root     root              2012-02-02 21:07 subsystem -> ../../../../../bus/i2c
drwxr-xr-x root     root              2012-02-02 21:07 power
lrwxrwxrwx root     root              2012-02-02 21:07 driver -> ../../../../../bus/i2c/drivers/WM8900
# cat /sys/class/i2c-adapter/i2c-0/0-001a/*
/sys/class/i2c-adapter/i2c-0/0-001a/driver: invalid length
i2c:wm8900
wm8900
/sys/class/i2c-adapter/i2c-0/0-001a/power: invalid length
/sys/class/i2c-adapter/i2c-0/0-001a/subsystem: invalid length
DRIVER=WM8900
MODALIAS=i2c:wm8900
#  ls -l /sys/class/i2c-adapter/i2c-0/0-0051
-rw-r--r-- root     root         4096 2012-02-02 21:10 uevent
-r--r--r-- root     root         4096 2012-02-02 21:10 name
-r--r--r-- root     root         4096 2012-02-02 21:10 modalias
lrwxrwxrwx root     root              2012-02-02 21:10 subsystem -> ../../../../../bus/i2c
drwxr-xr-x root     root              2012-02-02 21:10 power
lrwxrwxrwx root     root              2012-02-02 21:10 driver -> ../../../../../bus/i2c/drivers/rtc_hym8563
drwxr-xr-x root     root              2012-02-02 21:10 rtc
# cat /sys/class/i2c-adapter/i2c-0/0-0051/*
/sys/class/i2c-adapter/i2c-0/0-0051/driver: invalid length
i2c:rtc_hym8563
rtc_hym8563
/sys/class/i2c-adapter/i2c-0/0-0051/power: invalid length
/sys/class/i2c-adapter/i2c-0/0-0051/rtc: invalid length
/sys/class/i2c-adapter/i2c-0/0-0051/subsystem: invalid length
DRIVER=rtc_hym8563
MODALIAS=i2c:rtc_hym8563
#  ls -l /sys/class/i2c-adapter/i2c-0/0-001c
-rw-r--r-- root     root         4096 2012-02-02 21:11 uevent
-r--r--r-- root     root         4096 2012-02-02 21:11 name
-r--r--r-- root     root         4096 2012-02-02 21:11 modalias
lrwxrwxrwx root     root              2012-02-02 21:11 subsystem -> ../../../../../bus/i2c
drwxr-xr-x root     root              2012-02-02 21:11 power
lrwxrwxrwx root     root              2012-02-02 21:11 driver -> ../../../../../bus/i2c/drivers/gs_mma8452
drwxr-xr-x root     root              2012-02-02 21:11 input
drwxr-xr-x root     root              2012-02-02 21:11 misc
# cat /sys/class/i2c-adapter/i2c-0/0-001c/*
/sys/class/i2c-adapter/i2c-0/0-001c/driver: invalid length
/sys/class/i2c-adapter/i2c-0/0-001c/input: invalid length
/sys/class/i2c-adapter/i2c-0/0-001c/misc: invalid length
i2c:gs_mma8452
gs_mma8452
/sys/class/i2c-adapter/i2c-0/0-001c/power: invalid length
/sys/class/i2c-adapter/i2c-0/0-001c/subsystem: invalid length
DRIVER=gs_mma8452
MODALIAS=i2c:gs_mma8452