Help with cross-endian bitfields?

[Dan Malek]

jlquinn at us.ibm.com wrote:

> Hi, all.  I'm working on getting the Advansys driver working and what
> appears to be the final stumbling block is a difference in the layout of
> bitfields between little-endian and big-endian systems.

IMHO, bit fields are not normally a good thing to be using if this is
describing a real device register.  The compiler is able to read/write
in ways that may not be proper for hardware access.  For device registers
and when this is a data structure in memory, the cross-platform method
of using macros for reading writing 16- and 32-bit values and then 'C'
operators for testing/setting bits has worked pretty well in the past.....


	-- Dan

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