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Old 22nd September 2011, 19:47
Sleipner Sleipner is offline
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Default How much for for kernel updates?

Hi, I have a fundamental question about Linux kernel and Android.

When Google put out new OS they often come with a higher kernel number. How much work is it for engineers to make the device compatible with the new Android OS? Someone said that it's like starting the project from the beginning because it is a new kernel. But it can be that much work right? There are only small changes to the kernel and many smartphone makers have offered updates from Froyo to Gingerbread.

Froyo: 2.6.32
Ginerbread: 2.6.35

Or is it plug and play?

Last edited by Sleipner; 22nd September 2011 at 20:14. Reason: sorry about the confusing topic..
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Old 27th October 2011, 16:03
id10t id10t is offline
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They have to re-do everything. The linux kernel does not have a stable binary interface, so the various blobs used have to be updated, or the hooks that go into the kernel that attach those blobs have to be updated. The Android code was not merged into the kernel tree by Linus because it broke too many things and caused too many issues.
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