κǽˡ#define FREEBSD_DRIVERפ롣

㥭饯֥åǥХ

open()
	dev->disk.sectors
	dev->disk.sectorSize
	ɲä뤳ȡädev->sectorsϥ饯ǥХǤ⣱ꤹ뤳ȡ

ͥåȥǥХ

attach᥽åɤether_ifattach()setEtherDevice()夨롣
encapmbufؤϾĹʤΤǺ롣
struct mbufλͤ򲼵Τ褦ѹΤǡ˹碌ƽɬס
	ǡХåեm_hdr.mh_data줹롣
	m_adj()ϥǡХåեեåȤư롣
	mh_dataؤľܤΥݥm_adj()ѹ롣
	m->mh_data += a  m_adj(m, a)
	m_freem()³mbuf롣
	