sysfs examples

/sys/devices/pci0000:00/0000:00:1f.1
|-- class
|-- config
|-- detach_state
|-- device
|-- ide0
|   |-- 0.0
|   |   |-- block -> 
            ../../../../../block/hda
|   |   |-- detach_state
|   |   `-- power
|   |       `-- state
|   |-- detach_state
|   `-- power
|       `-- state
|-- irq
|-- power
|   `-- state
|-- resource
|-- subsystem_device
|-- subsystem_vendor
`-- vendor

/sys/block/hda
|-- dev
|-- device -> ../../devices/pci0000:00/0000:00:1f.1/ide0/0.0
|-- hda1
|   |-- dev
|   |-- size
|   |-- start
|   `-- stat
|-- hda2
|   |-- dev
|   |-- size
|   |-- start
|   `-- stat
|-- queue
|   |-- iosched
|   |   |-- antic_expire
|   |   |-- read_batch_expire
|   |   |-- read_expire
|   |   |-- write_batch_expire
|   |   `-- write_expire
|   |-- nr_requests
|   `-- scheduler
|-- range
|-- size
`-- stat