Source tree layout


Kernel source tree
/usr/src/sys/

Machine Independent (MI) device drivers
dev/

MI drivers that attach to bus mybus
dev/mybus/

Vendor/Product device lists for use in drivers
dev/mybus/mybusdevs 

Bus independent driver code
dev/ic/ 

Machine dependent (MD) drivers
arch/myarch/dev/ 

MD bus specific drivers
arch/myarch/mybus/