SPDMEM(4) BSD Kernel Interfaces Manual SPDMEM(4)
NAME
spdmem -- Generic Memory Module Serial Presence Detect
SYNOPSIS
spdmem* at iic? addr 0x50
spdmem* at iic? addr 0x51
spdmem* at iic? addr 0x52
spdmem* at iic? addr 0x53
DESCRIPTION
The spdmem driver provides support for generic memory module Serial Presence Detect. During kernel boot it displays module type, and where
possible, the size and rated speed of the memory module. Additional information such as bank configuration and width is printed if the ker-
nel is booted in verbose mode.
The Serial Presence Detect data for each memory module is also made accessible to user mode via sysctl(8). An entry for each spdmem device
is created under the hw top-level MIB.
SEE ALSO
iic(4), intro(4)
HISTORY
The spdmem driver first appeared in NetBSD 5.0.
AUTHORS
The spdmem driver was written by Nicolas Joly <njoly@pasteur.fr> with additional work by Paul Goyette <paul@whooppee.com>.
BSD
August 10, 2007 BSD
