Linux Software Developers Kit (SDK) User Guide
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Table A-1. Important Configuration Switches
Switch
Path in Configuration Utility
Description
CONFIG_NFS_FS
KERN->File systems->Network File
Systems->NFS file system support
Enables Network file system.
CONFIG_NFS_V3
KERN->File systems->Network File
Systems->NFS file system support-
>Provide NFSv3 client support
Enables NFS version 3.
CONFIG_NFS_COMMON
automatically selected when
CONFIG_NFS_FS gets selected
CONFIG_IP_PNP_DHCP
KERN->Networking->Networking
options->TCP/IP networking->IP:
kernel level autoconfiguration->IP:
DHCP support
Enables kernel level IP
configuration using DHCP.
CONFIG_IP_PNP_BOOTP
KERN->Networking->TCP/IP
networking->IP: kernel level
autoconfiguration->IP: DHCP
support
Enables kernel level IP
configuration using BOOTP.
CONFIG_ROOT_NFS
KERN->File systems->Network File
Systems->Root file system support
on NFS
Enables NFS mount as RFS.
CONFIG_LTRX_CPDRV
KERN->Processor type and
features->CP driver support
Enables CP driver (/dev/cp)
CONFIG_LTRX_CPM_DEFAULT_
DEVICE
CONFIG_LTRX_CPM_DEFAULT_
GPIO
CONFIG_LTRX_CPM_MANUALY
CONFIG_LTRX_CPM_MANUALY_
CP*
KERN->Processor type and
features->Lantronix CP Manager
Specify usage of CP.
DEVICE maps CP as pre-defined
use.
GPIO maps all CP as GPIO.
MANUALY maps each CP by user.
CONFIG_NOMMU_INITIAL_TRIM_
EXCESS
KERN->Processor type and
features->Turn on mmap() excess
space trimming before booting
Enables page triming in mmap.
Effective for memory fragmentation
avoidance with Shared profile.
CONFIG_RECLAIM_PAGE_BEFO
RE_LOADING
KERN->Processor type and
features->Reclaim page before
process loading
Enables that reclaim pages before
loading a process.
Effective for memory fragmentation
avoidance.
CONFIG_NOMMU_NUMERICAL_A
LLOC_PAGES
KERN->Processor type and
features->Turn on mmap that
allocates memory per page
Enables that mmap allocates pages
by numeric instead of order.
