remove devfs filesystem
rename pirv to driver for device_t
add function search_device_with_type
remove chrdev
fix device.c
fix logger
remove xtime
fix fb and serial
split fb and fbconsole
change order
split serial and serial console
remove blkdev
move bio function
working on ....
move loop dirctory
fix loop device's name
modify disk partition list
fix disk.c
change disk directory
add bus support