NetBSD includes machine-dependent On-Board drivers, sorted by device type and driver name:
SCSI interfaces
esp
NCR 53C9x SCSI interfaces.
mesh
Apple Macintosh Enhanced SCSI Hardware SCSI interfaces.
Disk and tape controllers
wdc
Standard IDE/ATAPI type hard drive controllers.
mediabay
Standard IDE/ATAPI type CD-ROM drive controllers in PowerBooks.
Network interfaces
bm
Apple BMac ethernet interface.
mc
Apple MACE ethernet interface.
gem
GMAC ethernet interface.
wi
WaveLAN/IEEE and PRISM-II 802.11 wireless interfaces.
Serial interfaces
zsc
Zilog 8530 serial communications interfaces.
Audio devices
awacs
Apple's ‘audio waveform amplifier and converter for sound' audio device found on most macppc models. May not work on several G4 and iBook models.
Miscellaneous devices
adb
Apple Desktop Bus for keyboards, mice, and other input devices.
nvram
Placeholder device for the persistent system settings.