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| author |   Cliff Brake <cbrake@bec-systems.com> | 2010-09-13 14:15:35 -0400 |
|---|---|---|
| committer | Cliff Brake <cbrake@bec-systems.com> | 2010-09-13 14:15:35 -0400 |
| commit | 4ee358534793381d2e87b01781079a3354fd5c1c (patch) | |
| tree | 729f8b0ce4bdbcd8a16f561fb68da0d66c3a3eb8 /docs | |
| parent | beb17e26ee9b4bc0cf334c3b30560c6eb66b1299 (diff) | |
| parent | eda06ec3dde6169a46797f876a82499c4fff8f62 (diff) | |
| download | openembedded-testing_2010-09-13.tar.gz | |
Merge branch 'org.openembedded.dev' into testing-nexttesting_2010-09-13
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/usermanual/chapters/common_use_cases.xml | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/docs/usermanual/chapters/common_use_cases.xml b/docs/usermanual/chapters/common_use_cases.xml index d86d0ca8d1..ef81b95fa9 100644 --- a/docs/usermanual/chapters/common_use_cases.xml +++ b/docs/usermanual/chapters/common_use_cases.xml @@ -94,6 +94,30 @@ SRCDATE = "20061014" </listitem> </itemizedlist></para> + <para>There are also some optional variables that can be defined: + <itemizedlist> + <listitem> + <para><command>SOC_FAMILY</command> describes a family of processors + that all share common features such as kernel versions, + bootloaders, etc. This is used to allow overrides for a whole + set of devices rather than per machine overrides being used. + The use of SOC_FAMILY as an override is currently a distribution + or local setting. + </para> + <para> + NOTE: SOC_FAMILY is different than MACHINE_CLASS in that + MACHINE_CLASS is intended to specify a grouping of devices + that may have different processors but share common features. + For example all OMAP3 devices can be described using the SOC_FAMILY + "omap3" and this value can be used in overrides to prevent + requiring multiple machine specific overrides. MACHINE_CLASS + might be used to describe a class of devices such as a cell + phone in which the processor may be different but the + features such as touchscreen, GPS, modem, etc are the same. + </para> + </listitem> + </itemizedlist></para> + <para>Next the kernel recipe needs to be added if it doesn't already exist. </para> </section> |