On 28/10/11 17:59, Zygmunt Krynicki wrote: [...] > Here the > people that write the BSP cannot solve the problem and just implement > their own solution to meet the deadline. Just to expand on this: right now the BSPs are mostly written by hardware manufacturers, and hardware manufacturers have a radically different mindset to software manufacturers. Where we're mostly interested in provided generic solutions that can be applied to a wide range of devices, they care only about specific deliverables, and once the deadline has been met they no longer care about it --- because they have a new deliverable deadline to meet. As an example: I recently worked with a god-awful television motherboard. (It actually ran MIPS, but that's irrelevant to this.) For the audio system, instead of writing a /dev/dsp driver, they instead wrote a library which used IPC to talk to a userspace daemon which mmapped /dev/kmem and poked the DSP registers directly. Why? Because the only software that was *ever* going to need to play audio was their own, and this approach was more flexible, simplified project dependencies, and above all saved valuable development time. -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ │ "Under communism, man exploits man. Under capitalism, it's just the │ opposite." --- John Kenneth Galbrith
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