SPDMEM(4) | Device Drivers Manual | SPDMEM(4) |
spdmem
—
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
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 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).
spdmem
driver first appeared in
NetBSD 5.0.
spdmem
driver was written by
Nicolas Joly
<njoly@pasteur.fr> with
additional work by Paul Goyette
<paul@whooppee.com>.
July 27, 2016 | NetBSD 9.4 |