for reading PC NVRAM contents
pseudo-device nvram 1
device provides read-only access to the
non-volatile memory contained in the MC146818 real-time clock.
This data is provided as a seekable character device,
. Checksums of the NVRAM contents are
calculated over bytes 2 to 31 and stored in byte 32. A valid checksum is
required for the driver to initialize.
support was originally included in