device_get_driver(9) on FreeBSD

The text d668f6631d18, as FreeBSD 4.3-RELEASE, FreeBSD 4.2-RELEASE, FreeBSD 4.1.1-RELEASE, FreeBSD 4.1-RELEASE, FreeBSD 4.0-RELEASE shipped it.

access the current driver of a device

device_get_driver(9) on FreeBSD now