Drasko Draskovic wrote:
Hi all.
Can somebody tell me what is exactly struct platform_device for. I
have to write driver for some device that sits on AMBA bus, and I do
not know if I should declare it a n amb_device or plaform_device.
ICBW, but its closest to a generic-bus, similar to pci, etc,
but without support for the features those other busses support.
Its not a 'virtual-class', ie it is directly usable.
Theres also an isa_device patch, on LKML.
Im not quite sure what it does better than platform_device,
but I'd wager that the differences between them would highlight
some reasons to use/not-use platform_device.
FWIW, I used platform_device recently, cuz I wanted a struct device
so I could use dev_info(&pdev->dev, "msg");
Im not sure thats a 'good' reason to use a platform_device,
but it escaped rejection on LKML :-)
hth
-jimc
Best regards,
Drasko DRASKOVIC
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