quoted

How do you think about to collaborate with other data structures
than character arrays?

See also:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/coding-style.rst?h=v6.11-rc4#n953

Hm, I picked a character array since all it's doing is sending a
buffer to the device.
There's no published specification to follow, only "Well the Windows
driver sends these bytes and this happens".
So there isn't really a structure that really comes naturally,
especially with all the magic numbers.

Is there still a desire and need to achieve a more meaningful interpretation
for involved data exchanges?
https://en.wikipedia.org/wiki/Header_(computing)

Regards,
Markus