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NVRAM(4)	    FreeBSD/amd64 Kernel Interfaces Manual	      NVRAM(4)

NAME
     nvram -- driver for reading PC NVRAM contents

SYNOPSIS
     pseudo-device nvram 1

DESCRIPTION
     The nvram 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, /dev/nvram.	Check-
     sums 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.

FILES
     /dev/nvram

HISTORY
     nvram support was originally included in OpenBSD 3.7.

FreeBSD	13.0			August 2, 2007			  FreeBSD 13.0

NAME | SYNOPSIS | DESCRIPTION | FILES | HISTORY

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