Mer/Documentation/ARM CPU

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== Arm variations ==
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Ambient light sensor
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The ARM processor has [http://en.wikipedia.org/wiki/ARM_architecture several variations].
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Camera
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Camera eject
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When Ubuntu supported ARM they built armv5el
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Sound/Microphone
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Headphone detect
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When Debian supported ARM they built armv4t ( eabi armv4 + thumb)
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Headset switch events (via dbus)
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Bluetooth
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(cf building for i386 or i486 ... i486 code won't run on old 386 CPUs)
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Wifi
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Keyboard
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The armv5el code makes better use of newer hardware and runs faster on it so the main Mer support is for Ubuntu.
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Touch
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We have a Debian port to support the slightly older devices (and to keep options open)
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GPS
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Battery cover/SD door events
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The Nokia internet tablets are armv6
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Battery
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The Freerunner is armv4
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Power control
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HW Buttons (zoom,lock etc)
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Future Ubuntu releases (Karmic) will be v6+ and maybe, eventually higher.
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Power  Button
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MMC reader
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[[Category:Documentation]]
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USB
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TV-OUT
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Latest revision as of 12:06, 22 September 2010

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[edit] Arm variations

The ARM processor has several variations.

When Ubuntu supported ARM they built armv5el

When Debian supported ARM they built armv4t ( eabi armv4 + thumb)

(cf building for i386 or i486 ... i486 code won't run on old 386 CPUs)

The armv5el code makes better use of newer hardware and runs faster on it so the main Mer support is for Ubuntu. We have a Debian port to support the slightly older devices (and to keep options open)

The Nokia internet tablets are armv6 The Freerunner is armv4

Future Ubuntu releases (Karmic) will be v6+ and maybe, eventually higher.

Retrieved from "http://bugs.maemo.org/Mer/Documentation/ARM_CPU"