Thread (44 messages) 44 messages, 12 authors, 2009-11-01

RE: Accessing flash directly from User Space

From: Jonathan Haws <hidden>
Date: 2009-10-27 20:31:29

Jonathan Haws wrote:
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How can I get that pointer?  Unfortunately I cannot simply use
the
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address of the flash.  Is there some magical function call that
gives me access to that portion of the memory space?

$ man 2 mmap

You want MAP_SHARED and O_SYNC.

To use that I need to have a file descriptor to a device, do I
not?  However, I do not have a base flash driver to give me that
file descriptor.  Am I missing something with that call?
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=20
/dev/mem

Ah, yes.  I told you this was going to be a dumb question.

Thanks, Bill.

Jonathan
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