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<!DOCTYPE appendix PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<appendix id='ref-features'>
<title>Reference: Features</title>
<para>'Features' provide a mechanism for working out which packages
should be included in the generated images. Distributions can
select which features they want to support through the
<glossterm linkend='var-DISTRO_FEATURES'><link
linkend='var-DISTRO_FEATURES'>DISTRO_FEATURES</link></glossterm>
variable which is set in the distribution configuration file
(poky.conf for Poky). Machine features are set in the
<glossterm linkend='var-MACHINE_FEATURES'><link
linkend='var-MACHINE_FEATURES'>MACHINE_FEATURES</link></glossterm>
variable which is set in the machine configuration file and
specifies which hardware features a given machine has.
</para>
<para>These two variables are combined to work out which kernel modules,
utilities and other packages to include. A given distribution can
support a selected subset of features so some machine features might not
be included if the distribution itself doesn't support them.
</para>
<section id='ref-features-distro'>
<title>Distro</title>
<para>The items below are valid options for <glossterm linkend='var-DISTRO_FEATURES'><link
linkend='var-DISTRO_FEATURES'>DISTRO_FEATURES</link></glossterm>.
</para>
<itemizedlist>
<listitem>
<para>
alsa - ALSA support will be included (OSS compatibility
kernel modules will be installed if available)
</para>
</listitem>
<listitem>
<para>
bluetooth - Include bluetooth support (integrated BT only)
</para>
</listitem>
<listitem>
<para>
ext2 - Include tools for supporting for devices with internal
HDD/Microdrive for storing files (instead of Flash only devices)
</para>
</listitem>
<listitem>
<para>
irda - Include Irda support
</para>
</listitem>
<listitem>
<para>
keyboard - Include keyboard support (e.g. keymaps will be
loaded during boot).
</para>
</listitem>
<listitem>
<para>
pci - Include PCI bus support
</para>
</listitem>
<listitem>
<para>
pcmcia - Include PCMCIA/CompactFlash support
</para>
</listitem>
<listitem>
<para>
usbgadget - USB Gadget Device support (for USB
networking/serial/storage)
</para>
</listitem>
<listitem>
<para>
usbhost - USB Host support (allows to connect external
keyboard, mouse, storage, network etc)
</para>
</listitem>
<listitem>
<para>
wifi - WiFi support (integrated only)
</para>
</listitem>
<listitem>
<para>
cramfs - CramFS support
</para>
</listitem>
<listitem>
<para>
ipsec - IPSec support
</para>
</listitem>
<listitem>
<para>
ipv6 - IPv6 support
</para>
</listitem>
<listitem>
<para>
nfs - NFS client support (for mounting NFS exports on
device)
</para>
</listitem>
<listitem>
<para>
ppp - PPP dialup support
</para>
</listitem>
<listitem>
<para>
smbfs - SMB networks client support (for mounting
Samba/Microsoft Windows shares on device)
</para>
</listitem>
</itemizedlist>
</section>
<section id='ref-features-machine'>
<title>Machine</title>
<para>The items below are valid options for <glossterm linkend='var-MACHINE_FEATURES'><link
linkend='var-MACHINE_FEATURES'>MACHINE_FEATURES</link></glossterm>.
</para>
<itemizedlist>
<listitem>
<para>
acpi - Hardware has ACPI (x86/x86_64 only)
</para>
</listitem>
<listitem>
<para>
alsa - Hardware has ALSA audio drivers
</para>
</listitem>
<listitem>
<para>
apm - Hardware uses APM (or APM emulation)
</para>
</listitem>
<listitem>
<para>
bluetooth - Hardware has integrated BT
</para>
</listitem>
<listitem>
<para>
ext2 - Hardware HDD or Microdrive
</para>
</listitem>
<listitem>
<para>
irda - Hardware has Irda support
</para>
</listitem>
<listitem>
<para>
keyboard - Hardware has a keyboard
</para>
</listitem>
<listitem>
<para>
pci - Hardware has a PCI bus
</para>
</listitem>
<listitem>
<para>
pcmcia - Hardware has PCMCIA or CompactFlash sockets
</para>
</listitem>
<listitem>
<para>
screen - Hardware has a screen
</para>
</listitem>
<listitem>
<para>
serial - Hardware has serial support (usually RS232)
</para>
</listitem>
<listitem>
<para>
touchscreen - Hardware has a touchscreen
</para>
</listitem>
<listitem>
<para>
usbgadget - Hardware is USB gadget device capable
</para>
</listitem>
<listitem>
<para>
usbhost - Hardware is USB Host capable
</para>
</listitem>
<listitem>
<para>
wifi - Hardware has integrated WiFi
</para>
</listitem>
</itemizedlist>
</section>
<section id='ref-features-image'>
<title>Reference: Images</title>
<para>
The contents of images generated by Poky can be controlled by the <glossterm
linkend='var-IMAGE_FEATURES'><link
linkend='var-IMAGE_FEATURES'>IMAGE_FEATURES</link></glossterm>
variable in local.conf. Through this you can add several different
predefined packages such as development utilities or packages with debug
information needed to investigate application problems or profile applications.
</para>
<para>
Current list of <glossterm
linkend='var-IMAGE_FEATURES'><link
linkend='var-IMAGE_FEATURES'>IMAGE_FEATURES</link></glossterm> contains:
</para>
<itemizedlist>
<listitem>
<para>
apps-console-core - Core console applications such as ssh daemon,
avahi daemon, portmap (for mounting NFS shares)
</para>
</listitem>
<listitem>
<para>
x11-base - X11 server + minimal desktop
</para>
</listitem>
<listitem>
<para>
x11-sato - OpenedHand Sato environment
</para>
</listitem>
<listitem>
<para>
apps-x11-core - Core X11 applications such as an X Terminal, file manager, file editor
</para>
</listitem>
<listitem>
<para>
apps-x11-games - A set of X11 games
</para>
</listitem>
<listitem>
<para>
apps-x11-pimlico - OpenedHand Pimlico application suite
</para>
</listitem>
<listitem>
<para>
tools-sdk - A full SDK which runs on device
</para>
</listitem>
<listitem>
<para>
tools-debug - Debugging tools such as strace and gdb
</para>
</listitem>
<listitem>
<para>
tools-profile - Profiling tools such as oprofile, exmap and LTTng
</para>
</listitem>
<listitem>
<para>
tools-testapps - Device testing tools (e.g. touchscreen debugging)
</para>
</listitem>
<listitem>
<para>
nfs-server - NFS server (exports / over NFS to everybody)
</para>
</listitem>
<listitem>
<para>
dev-pkgs - Development packages (headers and extra library links) for all packages
installed in a given image
</para>
</listitem>
<listitem>
<para>
dbg-pkgs - Debug packages for all packages installed in a given image
</para>
</listitem>
</itemizedlist>
</section>
</appendix>
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