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SPDMEM(4)                BSD Kernel Interfaces Manual                SPDMEM(4)

NAME
     spdmem -- Serial Presence Detect memory

SYNOPSIS
     spdmem* at iic?

     # macppc
     spdmem* at mem?

     # sgi
     spdmem* at mainbus?

DESCRIPTION
     The spdmem driver retrieves information about memory modules from an
     onboard EEPROM, standardised as JEDEC 21-C.  Currently spdmem is able to
     decode information relating to SDRAM and DDR/DDR2/DDR3 SDRAM.

SEE ALSO
     iic(4)

HISTORY
     The spdmem device driver first appeared in OpenBSD 4.3.

AUTHORS
     The spdmem driver was written by Nicolas Joly, Paul Goyette, and Tobias
     Nygren and ported to OpenBSD by Jonathan Gray <jsg@openbsd.org>.

BSD                              May 25, 2017                              BSD