SPI driver for arm running linux

Mar 18, 2007 3 Replies
A

Dear All,



I've arm board equipped with Samsung S3C2410A chipset. And at the moment we are using 2.4.18-rmk7-pxa1 linux kernel. Now we need to have SPI support for our product but through my search i have come to know that there is no SPI driver for 2.6.x backward builds, my conclusion is based on this [

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] source.



Now it would be great if some one can clarify following points:


0) Should i upgrade to 2.6.x version? are there in porting issues involved?
1) Can i write my own SPI driver for our existing version (2.4.18) ?
2) I have done driver development for windows but never did this in linux world! any good pointers or tutorials for writing/compiling the driver and interface will be appreciated.


I hate cross posting but just gonna post it to linux and embedded. Just 2 NGs;-) ali



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L

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Yes.

But of course.

May be or may be not.

Starting reading the kernel sources and see how much you can understand.

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R

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there is a free online book on Linux device drivers at

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. Although latest 3rd edition will be covering Kernel 2.6.x, so try finding previous revisions of the book for Kernel 2.4.x

Remis

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A

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at

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. Although latest 3rd edition will be

Second edition is here

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, but nothing for SPI named thing;-) i guess its architecture should be more or less char driver.

ali

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