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
spdmem* at iic? addr 0x54
spdmem* at iic? addr 0x55
spdmem* at iic? addr 0x56
spdmem* at iic? addr 0x57
DESCRIPTION
Thespdmem 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 kernel 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.
Some SPD ROMs also have a temperature sensor. It's supported by sdtemp(4).
SEE ALSO
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>.