Sorry, but I'm just too proud of this.
Given that you have:
class RegisterLayout(ctypes.Structure):
...yadayadayada...
You can then:
fh = os.open('/dev/devicethingy', os.O_RDWR)
mm = mmap.mmap(fh, ctypes.sizeof(RegisterLayout))
registers = RegisterLayout.from_buffer(mm)
And it just works. Behaves exactly the same way memory-mapping that
struct in C would. Sure the accesses take dict lookups, and that
definitely slows you down a bit. If you REALLY really needed that speed
you'd be writing C. But it works.
--
Rob Gaddi, Highland Technology -- www.highlandtechnology.com
Email address domain is currently out of order. See above to fix.
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